I have first hand experience with this one! My ex-girlfriend and I rescued two dogs while we were together, Frankie and Layla. Both of the dogs stayed at her house and were more or less bonded with her and her parents, but Frankie was a tough one because she was very attached to both of us. When we broke up I knew for sure that she would keep Layla and I was alright with that, but losing Frankie was devastating. I had "visitation" rights until our friendship crumbled and then I didn't see her for a few years. When my ex and her current husband had to move into an apartment she called one of our mutual friends and it was setup so that I would get Frankie back because she needs a lot of room and she is not an apartment dog. So now I have Ms. Frankenstein back and all is right with my world.

In future a relationship there is no doubt that Frankie and Riley will stay with me no matter what. Jasper, my parrot, will always be mine as well, but that's her choice.