@sellaxhin: Uhm, being open in a relationship will really helped you a lot. I'm telling you about being open because this might be the one of the reasons that your problem will be okay. I guess you need to tell him, about what is your real impressions between the girl and to your boyfriend. Despite of your situation that might be a test how strong is your trust towards your boyfriend
You need to be ready in all circumstances. You might be expecting into something in this time, but please expect less so that you can be prepared for what will happen to the both of you.