I have trust issues with DP - when we were first seeing each other I found out he had been on Craigslist looking for other women to chat to. We had been long distance at the time and it was very early on in our relationship - first few weeks. Not that it excuses it. I was madly in love with him, and I let it slide with a strong warning that if it happened again we'd be over.
Anyway, we're 6 years on and now with 2 DCs, and no repeat of what happened. However, today I bought him a reflective top for running in. No big deal. Then I went out to the shops, came back early as I had forgotten something and seen him through the window sending a picture of himself in the new tshirt. I felt something was off. So I asked him about it, I insisted that he pull up the chat window. He did, it was to an old female friend of his and it said ' 'me' bought me a stupid fn tshirt haha'. I started scrolling up to see what else he was saying and sending, and he switched the screen off.
He claims it's an old friend, nothing sexual. And he has mentioned this friend before. But why is he waiting until I'm out the door to message her? Why is he sending another woman a picture of himself? And why did he switch the screen off?
Now I don't know what to do. Am I over reacting? Or is he down playing it? I don't know how we continue with this lack of trust.