Okay, I'd just like to point out that I don't think (hope!) that my partner has cheated, or been unfaithful before, but there is something about this female friend of his that rubs me up the wrong way. I need to know, is it just hormones (I'm 7 months pregnant, fat and sweaty) or should I put my (swollen) foot down?
About a year ago, my dp started hanging around with a bunch of people that I, quite frankly, think are a bit meh. We live in a smallish town and dp is quite a sociable person, so we inevitably ended up running into this crowd almost daily. We are in our late 20's and they are 2 or 3 years younger than us, but due to their conversation and interests, you'd think that they were in their first year of uni... I am certainly no fuddy duddy, but I'd up yawning at their talk of trance and drug taking and going home early.
Soon, I started to notice one girls name cropping up in conversations now and again, like X said this, or according to X. I decided that maybe I should make the effort to stick around at night. I like to make a point of befriending dp's female friends, and more often than not, we also become good friends. I found this one to be a bit unfriendly and very up herself (albeit pretty :/). Nevertheless, I pushed on and was always nice and chatty whenever I saw her, esp because I realized that this girl liked to bitch about other women. My reasoning was to never give her the chance to create a wedge between dp and me. Even so, whenever I was chatting to someone else when we were out, I'd see her summoning dp over to chat and gossip. I invited her over to dinner once, along with one or two other friends. I made a huge effort to cater to her vegan lifestyle, with 4 different dishes, and she was basically a massive rude cunt and started lecturing me on eating meat. I asked her where she got her lovely leather handbag from (hahahahaha).
Not that long afterward, I fell pregnant (it was semi-planned, though not meant to happen first try!) and she and my dp's best friend started seeing each other casually. Unfortunately, this guy's job then sent him abroad for 6 months. Not long after, I caught dp and this girl texting each other (her far more than him, but he wasn't complaining) and I know that after work they'd meet up (not alone, but still) to gossip and godknowswhatelse. Like I said, I haven't got a problem with him having female friends, but I was obviously not invited to "chat"... I confronted dp with this, and he swears that nothing has ever happened, and that she's just "like one of the guys". Pregnant and hormonal, I dropped the subject.
Then a good friend from another town was visiting his family, and him and X had an affair, while his girlfriend was ill at home. Lack morals from both parties, but still... Then I found out that she had been seeing another guy whose ex is a close friend of mine. They had been together for over 10 years, had a two month old baby, hit a rough patch and split temporarily (or so my friend thought). My friend was left with the baby and a full time job to pay for it, while her ex and this fey dreadlocked skinny bitch had an affair. Oh, and she is openly anti-children, so this guys paid no attention to his kid. Okay, I know this makes him just as much of a massive cunt, if not more, but either she's stupid or very selfish, no? How can you willingly want a man to spend time away from his child?
Anyways, by now I told dp that I didn't want him hanging round her anymore, as it was upsetting me and that my well being should be more important to him than his friendship with her. He said that that was understandable, and that he beginning to see that she is a bit of a pretentious prat anyways. Fare enough. A few days later though, I found him in a café with a bunch of friends, and her sitting next to him...he didn't act guilty though :( I do know that several days a week, afer work, he goes for a drink before coming home, and she's present.
A week ago, he hosted a huge dinner (he owns a restaurant) where she was also present, got massively drunk and didn't come home till 11 the next morning (although his mother saw him asleep in his car i the middle of town at 7.30). He was rather sheepish, and admitted that this crowd were not a good influence on him and that he's stop hanging around them...
Then last night he was acting itchy when he received several text messages. This morning, when he was in the shower, I read them (shame faced!) It was her inviting him out for a drink and that she needed to tell him something. 
Okay, my question is: AIBU to put my foot firmly down and say enough is enough, no more friendship with this woman???? I feel that I have been patient enough!! How do I go about this? I do not want to be the big pregnant jealous partner, but this is making me quite unhappy.