Relationship question

My boyfriends second cousin kissed him on the lips I saw a photo of them close and her arm was round his neck so I asked him and he said she kissed me on the lips. I said what did you do and he said I was in shock so I just walked off. Should I be concerned?

If I were you I’d probably question him even more on why he didn’t talk to her afterwards, questioning her why she did that. Yet, he just walked it off in shock - which could (I guess) be a normal response for some people; However, I highly doubt someone would just leave it at that and not question why their second cousin would do that.

Well I did speak to her and she just said “ I’m sorry about that it wasn’t anything like that”