Hi all,
I have find out how my girlfriend contacted recently a man through her Facebook with whom he stopped chatting some years ago when her previous relationship started. We have been together couple of months. They used to flirt to each other about him giving her a massage etc. It just makes me somewhat curious and feeling a bit confused why she contacted that guy now that we are in a relationship, and should I be worried? Well, I know these are very subjective matters i.e. what constitutes problematic flirting and what not and so forth. However, different point of views would be appreciated. I have basically just thought to ask her politely about this.

It can't hurt to talk about it. I'd be careful though, a conversation like that can turn into a confrontation very easily and blow things out of proportion.