Sorry if it's a long one, regular poster but name changed.
My DP and O have been together 15 years and have a 4 year old DD together. The last 4 years haven't been easy, following a high risk pregnancy, traumatic birth and DD being born with a disability I feel like I have lost myself a little.
I've never ever have thought DP was the type of man to betray me but I think he has. Around 2 months ago he said that his feelings towards me have changed and that I've not been showing him enough affection and we hadn't had sex for 3 months. I listened to everything he had to say and agreed that I had been preoccupied with DD, a new promotion I'd got at work and just general day to day life. I've been making a conscious effort to make time for us as a couple, I've gone and bought some sexy lingerie and initiated sex several times over the last 2 months and have been told no every time. He doesn't feel a spark between us anymore and doesn't know what he wants. It's a punch to the gut but still I'm making an effort and trying to win him over.
The last few months he has been staying up until 04:00 drinking, I only know what time he's come to bed by the "last online" on WhatsApp. His phone is never out of his hands at the minute, I mean he will take it into the shower room with him. I've never in the last 15 years thought about looking through his phone but this is making me suspicious. He's not the type of guy to put kisses on the end of a text to friends or family, only me. Recently I've been receiving a whole row of kisses on the end of messages as opposed to the usual 1 or two. Again, nothing in the grand scheme of things but it sent my Spidey senses tingling. He's recently changed his silly WhatsApp picture of us to just him. Again, on its own nothing much but it adds to the picture.
So after another sexual rejection he left his smart watch upstairs last night and I went through it. It doesn't hold much memory so there's not much on there. But there are texts between him and a female colleague with him calling her babe and at the end of every message between them both is a row of kisses!! The next part makes me feel sick but in one of her messages she's says "love you xxxxx" and no response from him. Im going to assume he's deleted his replies as the conversation doesn't make much sense.
I feel sick to my core, the man I've loved for the last 15 years, is doing this. Am I going crazy or is he having an affair? He doesn't go anywhere other than work (except for last Saturday when he went out for a couple of beers with his friend... again could be a lie could have been her)