Op, I know it hurts but the dog is innocent. It's another life who has no idea what happened and is dependent on human care. Don't harm it or dump it on the streets or in a shelter, otherwise you are just as bad as she is, or perhaps worse if it ends in the dogs death or harm...

You have been blessed with a golden opportunity, you now have two weeks to train the dog to hate her and crap in her bedroom

What she did was selfish but the dog is innocent in all of this. Don't take it a pound or shelter. Look after it until she gets back. They have feelings too.

I'd keep it.

drop the dog off at a shelter then she'll have to buy him back

"Accidentally" leave the front door of your house open.

The dog has nothing to do with the break up! It shouldn't have to suffer ???

People that are saying drop it off at a shelter. Are you ******* serious? There is a chance it'll get adopted out. The poor thing is innocent in all of this and it would possibly be losing the owner it loves. Dogs aren't meant to be swapped and traded around. At least OP is being sensible. Even a joke about it is not funny. The poor thing deserves better.

Damn, she's a bitch. She put you in an impossible position because she's selfish. Just take the high road, OP. At the end you can have her come get the dog, be standing totally stone-faced and get to say "Lose my number" as you walk away.

Now you can say that due to circumstances, you are now forced to watch the dog so now charge her for pet care