I found out 2 months ago that my partner of 2 years was talking to another woman. She had contacted him on social media, complimenting his looks & it then became flirty. Their interactions only lasted 2/3 days before I found out & there wasn’t anything majorly sexual and no chat about meeting up irl. Although I'm sure if they’d continued chatting it would have led to that.
He seemed genuinely remorseful & accountable and he still brings up what he did, assures me he would never hurt me like that again & that he’s so sorry. He has allowed me to instigate conversations about it whenever I’ve felt it necessary or I’m thinking about it etc - without becoming frustrated and wanting me to move on.
However, I’m really struggling to not feel paranoid he will do this again. He’s on good terms with his ex & hasn’t done anything like this before (which weirdly is also quite hurtful). Is this normal? Is it true that once a cheat, always a cheat? Am I making a mountain out of a molehill?