Why do you think a boy wouldn't kiss a girl after a date?

A good friend of mine Alice (26) went on two dates with this boy(27) and they happen to have had a lot in common so they chatted for hours. They spent a lot of time together and at the end the boy would invite her to his part of town but she’d decline (thinking its a booty call). What seemed odd to me is that he didn’t kiss her either times, but slightly touched her shoulder and played with her hand awkwardly. He also asked her about a male friend of her’s which appeared to be more than friendship (I find it odd for someone to ask that if he isn’t into the girl).

She told me he isn’t talking to her much now. I know we can’t know the exact reason for his behavior but if you were to take a guess, what would you say? Does he like her? Is he just shy?

Here’s my take: He likes her, but is unsure of what she wants and doesn’t wanna come off aggressive. Im saying this because Alice is quite distant emotionally. She’s a strange being that I can’t even read even though I’ve known her for a while.

My other take is: He just wants to have sex with her.