In a state of shock. Not sure what to make of it.

I need some advise, or even just a opinion. I was with someone for almost ten years. We broke up about three months ago. I haven't really had any closer. We don't have any kid's together, but we do have a dog , and i have plans to come and get him. The thing is, i have been heartbroken over him, and i never had any full closer. We have talked a few times over face book., and I had told him a few days ago, that i would be sending a Christmas gift for my dog, and i know he is a dog, but he like my baby to me. He said no problem. But then i see a picture of some woman with my dog, all cuddled up with him, and the other thing is the lady looks just like me, and i mean so much so, i had to do a triple take, and the caption said my babies. I am devastated over this, now i feel i have lost him, and my dog. and before it gets said he is just a dog. he is more to me then just that, i have lost alot in the past few years. Now i don't know if i should not try and get my dog, if there will be a issue, and why in the world he would be with someone who looks so much like me.. I really don't get it, at all. Also he had posted he was getting married, but when i messaged him, and told him i was happy for him, and about the dog, he just said he was not getting married, and that i should let him know if i do come down, so we can get together, not sure why, but i am just kind of dumb founded right now.

I think I have to agree with Susie i that you should forget about the guy. Who cares if she looks like you? You should try to still get your dog if that was the plan though. It's your dog after all, right?