SIL won't stop talking about BM even though she knows it bothers me
My DH’s sister and mother CONSTANTLY talk about his ex-girlfriend (SD’s BM). Take yesterday, for example- DH, SD and I went to see SIL’s new apartment and were only there less than an hour & the entire time, she was talking about BM! Just random stuff- like SIL is pregnant now and she was talking about how BM was when she was pregnant… she asked DH if he has talked to BM about what they are going to do when SD starts kindergarten next year… just RANDOM stuff! This has been going on for a LONG time and I have told SIL before that it bothers me, but she keeps doing it! DH and I have been together for 3 years so it’s not like they just broke up and he just started bringing me around. BM just had another baby and SIL and MIL both went to visit her in the hospital- I told SIL it upset me and she apologized but I don’t think it was sincere. She told me BM is always going to be around because she is SD’s mother and I get that, but I think they are taking it too far, to the point of being disrespectful to me. What do you all think and do any of you have this problem??