RG

We have been together for about a year, everything else is great between us. The one major thing that's bothered me are his ex-girlfriends. Firstly his last gf that lasted 8 years, they almost got married, had a kid (she lost it) and now are best friends or since our relationship just 'good friends'. He says they knew each other for so long that she is like family to him. I feel that they use each other as personal crutches such as if she gets anxiety over something she will call him so he can calm her down, etc. They go out to dinner or concerts 1-2x a month and I have no idea how much they talk/text. We do not live together.

So for Thanksgiving I was going with him to meet his family for the 1st time (he usually always went with her). They have been broken up for FOUR years! When they were together they bought a dog and he wanted her to watch the dog while we are away with his family. I'm not comfortable with this b/c it's hard enough showing up as the 'new' gf but when your ex is still in the picture dogsitting for him? Not happy. I told him this and apparently out of the blue she texted him to see if he was going away to say she could watch the dog.

He won't do it if I absolutely don't want him to but she will still be in his life. Should I just accept this b/c we are great together or break up with him b/c he was so heart broken for years after they broke up and I doubt he can imagine his life without her. I feel like I'm in a strange triangle, I've never met her. I know he would like it if we were friends but 1 I'm not ready and 2 all his past stories include her b/c they were together for so long. I'm super sad can someone please give me some advice? How do I move forward with him if I feel she is still a part of his life or should I run fast?