Ive been chatting to this girl a lot since i arrived at uni, and we've really been getting along well. We even kissed at a club a week or so ago, although in the morning we had an awkward chat about it and decided that as we hadnt known each other long that we would stay just friends for now at least. However, the last few days she has seemed a bit more distant with me, although that could just be my imagination. The problem is this: last night i was in a club with a few of my friends and she was there too, and then one of my best mates put his arm around her, and they were holding hands while they were sitting together. Nothing else past that happened, so it shouldnt have mattered a great deal, but i felt really very angry with my mate, and i think she knew it too when she looked over at me, even though (i think) i saw a look of guiltiness in her eyes.
My question is this then: Do I have any right to be jealous and angry with my friend for such a small action, when im not even going out with her (given that he doesnt know we kissed the other week). And if i do have the right to feel this way, should i act on it i.e. tell him that i like her and to get his hands off??