Boyfriend issues, I need some advice?

He may just be talking to another girl because he wants to get a different kind of attention or something. It depends how long you have been dating though. If it has been awhile then he might just want to talk to another girl but it doesn't mean anything at all. If it's early on in the relationship he might not be getting the kind of attention he wants from you...he may want to talk like that to someone else. Once you get into a relationship the way you talk to your partner can be very different to how you used to talk to them. Sometimes the fun dies a little in the flirtation and the chase..so maybe he was just looking for a bit of flirting. The thing that catches my attention is that you hacked his Facebook to begin with..this shows to me that you might not fully trust him? Because you wouldn't have gone in there unless you were looking for something right? So maybe you need to talk to him about trust issues too. Communication is key.No matter how cliche that sounds, it is something you should always remember in any relationship.