It's nothing to do with me!
When she moults she gets lines and strange shapes in her coat. This is one of her random moulting shapes that just happens to look like a heart! I spotted it when she was out and about this morning and couldn't believe it, especially with it being Valentines Day soon. :lol:
A few days ago she had a very clear letter 'M' on her face. It's starting to disappear now, but you can still just about see the remains of it on the photos.