What does he express?

So, basically there's a guy that I like and we look great together while clicking pictures and I had to go somewhere as it was really urgent. When i turned back i saw him getting really excited to see the photos of 'us' which 'his male friend' had clicked , then his male friend made a joke (I don't know whether he was teasing him or not) but it was kinda sexual, then they both were laughing on that joke.

What does it mean does he like me?
Please tell I am confused was he trying to play with my feelings by laughing on me? Or am I just overthinking, as possibly there could be another reason as well.
What does he express?
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