I feel physically sick.
Been with dh for 7 years now, married for 3 and have ds 1. This last year has been rocky as we've adjusted to ds coming along.
I noticed a while ago that a woman added dh on fb (he was sitting beside me at the time) and there was something about his reaction to it that felt off. That was about a month ago and today I had the chance and curiosity got the better of me. I've never snooped before, he's never been anything but a wonderful partner and I've felt really secure in our relationship up to recently.
There were messages back and forth to this girl, some really run of the mill chit chat about their families (she's also married with a little one) and then in between, really inappropriate and flirty messages. Even discussed our sex life (which has been almost non existent for the last few months) and talking in detail about the last time we did anything and what we did. Her telling him when she had a wank etc.
I feel so humiliated and betrayed. I confronted him about it, he went grey, took responsibility immediately and said it was a stupid flirtation and never progressed to real life (messages also read like they never met up and he never goes out so I believe that). He said he doesn't really understand why he did it, and that he understands why I'm upset and he'll block her and never have contact with her again. I don't really know what the next step is. Obviously we need to work on things between us but I've lost trust in him now and I think if it was just me I'd walk away but I have ds to think about and I couldn't stand only having him half the week. Dh is a great and engaged father so he'd want joint custody and there's really no reason why he wouldn't get it. I'm just off mat leave and it's depleted my savings and I don't earn enough at the moment that I'd afford to set myself up somewhere new.
I want to work at things- we've always had a brilliant relationship and felt rock solid but lack of sleep and more demands and no time together as a couple has really taken its toll. So I want to get back to where we were before but equally I'm scared that's the foolish option and that I'm going to be left looking like a mug further down the line.
I'm scared I haven't been angry enough, but it's Xmas day, we're due to his parents house for the whole day which I now couldn't see far enough and I don't want ds to hear fighting in the house and I think I was just so shocked by it. I never ever in a million years thought he'd be like that.
What should my next steps be?