Dealing with grief

Hello everyone. What I will tell here is a rather sad story, and I would like your advice on how to dea with the situation.
Two and a half weeks ago, our first and oldest bun, Pumpullo, passed away from unknown causes. The day he died, he wasn't moving much, and one of his ears was dropped to the side (like a lop, which he isn't). Me and my mom just assumed he was being lazy that day (he was a pretty lazy bun!), but then my girlfriend arrived and instantly noticed he was dying. She took him in her arms, he was limp, and as we were going to rush to the vet, he gave his last kicks and passed away. He was 2 years and 8 months old.
We gave him a proper burial in the pet cementery. My girlfriend was devastated, since she loved him the moment she laid eyes on him (she picked him up from her uncle's farm, his destiny was the oven, but Pumpullo licked her nose and that won her over). My mom loved him as well. I've never seen her cry this much, not even at my grandfather's funeral.
The only good thing that came out of this terrible ordeal was the fact that we could bring over one of his sons (her "wife", 3 children and "sister" are living in my girlfriend's house), Angel, not to fill the gap left by Pumpullo, but to brighten the mood and give him a chance.
Now to the real problem. Almost every waking moment I'm not distracted with studying or videogames, I'm just terrified that another one of my buns might die. Currently at my house we have 2 buns, Pepa and Angel, both son and daughter of the bun who died, and my gf's house has 5 buns right now. I don't know what to do I've seen people here who are happy owners of buns, and that have seen some of them pass on, how do you deal with it?
Bear in mind he was my first pet ever, so these feelings are all new to me.
Thank you for your time!
--Mark

Mark.There are several stages of grief.Anger,acceptance,bargaining...It escapes me what else...but you all will go through these symptoms for want of a better word at different times and for a different amount of time.As you are all grieving,do try and support each other untill all has passed through to each stage.Im sorry you are all suffering.
Each living thing comes to an end...hopefully not so soon after the initial loss.
For instance,If a child loses its mother,it has a natural fear of losing the other.
I sincerely hope you all start to feel just a bit better.Your bunny was very much loved.Take care.xx

ive not lost a Bun yet, but when i lost my cat at only 6 years old i was so heartbroken, i had got him to help me with the grief of losing my dad two weeks before so it was like a double blow

i got loads of picture frames and put my favourite photos about the house (same thing i did with my dads pics too), it made me cry everytime i saw them but when i got Alvin (my first rabbit) about 3 months later the hole that had been left in my heart started to fill up with love for this new little furry in my life and i stopped crying for George and allowed myself to let the pain go. and now i can talk about him and look at his pics with happy memories not sad ones

it takes time to grieve, dont rush yourself until your ready to let the pain go, but i really found for me photos and a new furry to love worked wonders on the grieving process for me

as for the fretting over the possible loss of your current rabbit, i dont think that will ease as we learn what delicate creatures they are the fear of walking into a room and finding them gone is something all rabbit carers must feel naturally.. I know after a stasis episode with Alvin im convinced i wont see him the next day for a good few weeks after

Aw Mark I am so sorry for your loss, i have a bunny who is 6 and has dental problems i cannot begin to imagine what it will be like without him, i will be devasted just like you are. You have to try and focus on the good times you had with your bun and remember those happy times, i bet he had the best time with you, and you saved him from being killed in the beginning, i bet he was happy for that. Death unfortunately is part of life and losing a pet i think is just as sad as losing a family member. I hope you start to feel happy again soon, I bet ur bun is looking down on u xxxxxx

I haven't lost a bun yet either, but I did lose my dad.

After I lost my dad, I was paranoid about losing my mom. If she was 10 minutes late home, or if she didn't call exactly when she said she would, I would flip out. It was just a constant panic.

I don't have any easy solutions, but I just tried to keep myself distracted and calm. And I always fall back on logic. "She's probably caught up at work with her boss or her cell phone died as she always forgets to charge it, or she didn't hear it ring..." etc etc. Just try and take a look at your new bun and say, "Do I have any reason to believe that anything is wrong with him?" Check him over and if you can't find anything wrong, just try and calm down. Lay down next to him and let him jump all over you.

Time works best here, as I'm not paranoid about my mom anymore. Just take it one day at a time, and try to snap yourself out of that mindset as soon as you start.

And always feel free to vent here!

Thank you all for sharing your stories. You made me see it is an issue of time and patience more than anything, and that Pumpullo lived a happy life, always lounging, doing binkies and being surrounded by everyone who loved him.
This morning, my mom woke me up because Angel was acting strange, it was just like the day Pumpullo passed away... We're still not sure what's going on with him since there are no small pet specialists in my area (I could drive for days and still not find any), we took him to the vet but he could only give him an antibiotic in case it's an infection, we're guessing it's stasis (he won't eat, only drinks water, and is really quiet), right now we're keeping him warm, massaging his tummy, trying to give him some hay (we couldn't find regular hay, only cubes; tomorrow first hour we can get some regular since the store'll be open) and most of all, being patient and giving him our best vibe.

Angel could be grieving too, lots of cuddles will help both of you. Can you get to a shop to get some herbs, kale etc to temp Angel to eat.

You may also find that planting a tree in your garden for Pumpullo is a nice gesture for you to look out at. When I lost mine, I bought a flower pot and put a small fern tree and some flowers around it - it gave me a little comfort.

Sending Angel lots of eating vibes.