We lost Rudy yesterday morning .Rudy was Prince's first and only bunny friend.Ive noticed Prince has been himself ,He usauly binkys all over the place he seems to space out sometimes.He s still eating drinking normal.He is now a full time house bun hes only in a cage at night and if we have to leave.But hes not my little ball of boncying joy he usauly is.So Im thinking he is depressed about losing his brother.What would be the best thing to do?