<human>: Condense the text into a few key points

Some useful background information: We are currently in a long distance relationship, and we've been together for 3 years.

So I saw this video of this campus event with my SO in it and on this video, he doesn't seem to notice a camera and a mutual friend of ours runs up behind him and gives him a hug. 

This is all fine and dandy until he reaches for her hands and kind of strokes/caresses them. Then she moves her hand (away from his touch?) and kind of scratches his belly. Then she lets go of him and they talk and she laughs. Then it cuts away. 

I'm really uncomfortable with this and I will talk to him about it but before I do, I need to get a second, third and fourth opinion.
<bot>: Saw a video of my SO running a girls hands. Is what I'm feeling (a sense of betrayal) justified? Or am I just being overdramatic?