We recently met at our part time job and stared talking and whenever I turn around, he's just standing there and smiling softly at me. Lately, he's been offering me hits from his puffbar/vape pen... I know it's unhealthy but every time we smoke together, it feels weirdly intimate. We just talk softly to each other and make jokes while passing it back and forth. He would whisper if I want a hit before I leave, things like that. Anyways, why does he do this? He doesn't share with anyone else, but it's not like he knows me that well.