It sounds like your dad is open to having you there but not your boyfriend?

I know you don't want to put your son in daycare. You made that clear and it's hard to do.

It's the dog that's the issue but I can see why your boyfriend loves it. The dog is his constant.

Can you get an apartment for you and your son? Maybe your boyfriend can contribute. Then your boyfriend can keep the dog in his car while he spends time with you? It could work.