So I've posted about this before, but under a different name.
I'm 33 weeks pregnant, we have one DD (15 months), and I just generally feel crappy, but DH is making it worse.
When we met DH had a female 'friend', I got suspicious when she posted inappopriate comments on his facebook, and he admitted that his friend was 'in love' with him. He also showed me the abusive emails she sent him when she found out about me.
Still not happy about this 'friend' I pursued it, and he admitted that she had seduced him a number of times.... with this knowledge I asked him to not be alone with her anymore, to not go alone to her house or vice versa (it was the beginning of our relationship so we were still building trust, but a woman who wants a man & has succeeded in getting him into bed, is not one that I wanted to contend with). He still saw her at work (DH works from home as a computer engineer, but goes into a charity one day a week - the same day as her).
We married quite soon, and then I was expecting. We heard no more from his friend... until DH went on holiday (alone) when I was 7 months pregnant. He forgot to logout of facebook, and I saw emails to & from her, nothing flirty at all from him, but she was constantly asking for his help - to get a car, to give her a lift somewhere and other things - he didn't help her though (and she'd left work).
After DD was born she started wanting help with her PC, it kept going wrong, although worked fine once here. DH had to take it back to her place. He did bring her round to meet me, and she was pleasant - but still wouldn't have me as a facebbok friend.
It's started again recently, she wants him to fix her laptop/pc/other laptop, and he goes to collect/drop-off. Once I came home from town to find her in our house, alone with him... she criticised my new hairdo & DH didn't say a word... when confronted he claimed to have not heard her.
So last week he goes into work... he's not been for ages & has changed his day... conicidentally she was there & had her daughter's laptop for him to fix 
I don't believe that she randomly turned up, on a different day to usual, bringing her daughter's laptop, on the off-chance he'd be there!
Off he's gone just now, and I'm actually in tears. She still owes him money from fixing hers, yet he made my son pay to be fixed, so I'm bloody fuming that he's had a look at her daughter's!!!!
I'm worried that when I go into hospital to have this baby (and will probably be caesarean), that she will need something 'fixing', and will turn up at our house, or DH will take our DD to hers - and I don't want her near my baby girl without me present.
To make it worse I slept on the sofa last night, as our sex life is dire, and I want more (being selfish I guess, but without sex I don't get why we should stay together), and can hardly walk today as my back & hips are killing me.
I guess he'll speak to her today, confide in her, and I guess it'll be my fault for pushing them together, yet DH wouldn't be happy if it was the other way round.
If you read all this, thank you xx