DP was with his ex for just over 3 years, they broke up because she cheated on him with 7 different men. (!!!)
Shortly afterwards DP met me and we started dating. Ex (who has a track record of being immature and a massive drama queen) set about trying to break us up (about 6 months in) including calling him at work, threatening to turn up at our house, sending him poetry and writing long long emails about how special their love was.
she eventually gave up and now, three and a half years on the only contact DP has is an unfortunate connection through his friend group.
I foubd out today that MIL, who knows all about the above - including the immense amount of pain she put DP through, has messaged Ex publicly through FB asking about her life and going on about how much she misses their "chats" and imploring her to keep in touch .
DP and I have just bought a house together but up to recently had been having a serious rocky patch. I get on well with MIL but I've never been sure she likes me much. I try hard with her and the whole family.
AIBU to be upset about MIL and ex? (I feel I probably am)