I have been seeing a man for 12 months. His previous partner ended with him (nearly 2 years ago), not really sure why - she didn't really want to be in a relationship anymore - she has since been single.
I have been told that they didn't finish then and were on off for a long time after that - even during when he was seeing me for the early few months. I asked him and he says he did go back out with her 'a few times' because he wanted to get back together with her. He never mentioned this before and so I assume a gap between us. Her social media profile shows a night out with other friends with him tagged that was after we first had sex.
Is this
A a person to not trust
B No big thing
C He is one of those people who cannot be single and was looking around but hoping the ex would also take him back so I was 'make do'
I feel really odd about this and feel that he is untrustworthy now and not worth considering for a long term commitment.
Or I could just be over the top and overthinking things!
Help?