Boyfriend of nearly 3 years we both decided to spilt due to silly bickering, he left to move in with a friend, we have a 2 year old so still seen eachother regularly, we made up he didn't move back in straight away we agreed to see how it goes until moving straight back in, so he would stay over ect.
A few weeks ago now he stayed over and I noticed he put his phone underneath the pillow when he normally just puts it on the bedside table, so instantly thought I needed to look on it, waited until he fell asleep (I know his pin) and looked through, I went on his photos and seen a screenshot of a tinder profile, I looked if he had the app an he never. I asked him about it he said his friend sent it him on what's app which could be true as the pics automatically save.
Anyway, the other day I'm looking through his Instagram and I notice the girl on the tinder profile had liked a few old photos of him and our child, but neither were following eachother? Asked him about it he got a bit funny and said he wouldn't recognise her if he seen her in the street but knows her ex but again I dropped it.
Then I go on his Facebook and the same girl (she lives in the area he's from) had liked a pic he uploaded of our child from June. I then notice she isn't even friends with his "mate" he first said she was seeing on there, when I asked him about that all he had to say was that his mate has now got a girlfriend.
So basically I don't know if to just drop the whole thing now as we weren't even properly together at the time and I feel like I'm never gonna know the full truth, what do you think?