Do people get jealous with this?

If I have a friend and he was really into me but is very angry at me right now and we are at the same party. If I am having a wonderful time with people paying attention to me and doing fun things like volleyball, etc. Do you think people start missing being with that person and get jealous seeing that person with other people whether the person is with a male or female. I did notice him looking at me a lot to see how I was interacting with people.Do people get jealous with this?
It kinda depends--I'll either be enraged by it or remorseful. If I was the one who did something wrong, then I really start to regret my actions once I see that they've realized they're well enough without me. If they are the one who did something wrong, however, it just makes me angry and I begin to think less of them--how could they be enjoying themselves in good conscience, knowing that they've hurt someone they supposedly cared about? Ask yourself which side of the argument you were on (from their perspective), and there lies your answer.