He stays after class with me?

This semester i've been staying in class after 6th period so i can fin everything in chem so i don't have much to do at home. My partner and friends notice and asked why, and i told them my reason. This guy, who i talk to a lot and like him, he heard us and he never stays after. Usually people don't. But recently he has been staying after the class ended and looks over at my table.

Is he doing this because i am? Cause i know girls do this, so i don't if guys do.

Only this one time, when we were really really late in class, i told him and my friend i was leaving but he said wait 2 times, and he walked with me even though i knew he wasn't done and rushed.

The thing is, other times he will talk to me and we will mess around but he won't ask me what im doing tonight (he did once tho but its cause we were alone) or personal questions. Is it because there's other people and the teacher?
He stays after class with me?
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