Please be kind - first time sharing this all and I need some advice as it's eating me up inside.
Background: I am married with 2 boys (primary age). Been with DH for 15 years, married 12. Largely a very happy marriage and I love him dearly - although last 6 months have been tough as he's been mega stressed with work and being a bit mean at times.
So, 7 years ago I had an emotional affair with an ex-work colleague. It was mostly just flirting, messages etc and lasted on/off about 18 months when I decided to leave the job as my MH was in a bad way. I found myself a counsellor and set about trying to deal with lots of unresolved childhood trauma (was sexually abused as a child by a family member and my alcoholic dad left us after many affairs too).
I have seen said ex-colleague a few times since then and whilst things have reverted back in to old chat - he's in a sexless/loveless marriage etc - nothing more has ever happened.
A few months ago there was another work reunion that was an overnight. I went along not planning to drink too much but fell back in to old ways and ended up quite pissed and had a couple of lines of coke (this is NOT my norm btw). Was chatting with ex colleague a fair bit but all fine, he walked me back to my hotel and all platonic, although I was joking that if/when my husband dumps me he's my back up. And then - god knows why - I messaged him when I was going to bed. He face-timed me and we ended up having some flirty chats and I flashed my boobs. He was asking for more but I refused and said goodbye.
I woke up the next day and my first thought was "holy fuck, what have I DONE!". Which I messaged to him. He called and just said not to worry, to delete calls etc off my phone and just forget about it and go back to my lovely family. He is a fairly sensible bloke tbh and I do know that he wouldn't want to rock the boat.
However, I am struggling to reconcile all of this. I am so utterly appalled with myself and obsessing so much about how gross I am. I have ADHD but don't feel it's right to just blame that. I haven't touched any booze since that incident and it's definitely served to make me realise that I don't want to drink - not only do I take drugs (which I really wouldn't normally do) but it makes me do stuff I hate myself for.
I don't even fancy this guy, which kind of makes things worse I think. I just enjoy his attention.
I guess my question is what to do? I have contemplated telling DH but just hate the thought of hurting him, esp for someone that I don't even want. I am also shit scared that he'd want to end our marriage.