I have been dating this girl since two weeks now, I knew her almost two months ago. We want to go serious with one another.

Last night she went out with her friends to celebrate her graduation of last week. She got a little drunk and as a part of a game (do or drink) she kissed a stranger man's hand. She also told me that at a certain point she didn't want to drink anymore because she didn't want to lose control and was thinking about me all the time.

When she arrived home she called me (as we agreed) and told me this straight on. I complained about the fact showing a lot of jealousy.

Now, do I have the right to be jealous here or is it my insecurity talking? I mean: is the fact (kissing another guy's hand out of a challenge) a good reason to be jealous?