she wants to show respect to my fiance and his family is this appropriate?

sometimes I catch him looking at me but then acting like he didn't. When I try and talk to him he seems distant.

He is my tenant and I'm the female landlord, we are about the same age. I do not like him at first then I slowly start to like him and start to treat him nice, Way too nice being a landlord but I did not personally approach him to talk or even ask him out, it is all just business. Until one day, he asked me permission if she could bring a female friend home and I agreed,that's when everything crashed. I felt hurt and jealous. Then I text him saying that he is not allowed to bring Friend home next time and I texted him in quite a harsh tone. From that day, I did not treat him nice and everything is just plain business, I even avoid seeing him in my house, he can tell that I have stopped treating him very nice and now it is just plain business but do you think he suspect that I like him?

He's fifteen. I'm the older sister. When he's mad that I'm taking a photo/vig of him or thinks it's funny or something he slaps or punches me on the shoulder or something. My uncle once told him that he can't do that. It's morally wrong for a boy to hit a girl. He's the kind of shy ignorant cocky type going through some weird teen phase where he's constantly on his tablet. Constantly. Not long ago as some kind of joke he threw a lolly at me from half the room away out of now where which hit me on the head. I keep wanting to say it's wrong for a boy to hit a girl. There's a word called a girl basher yeah? INSGEAD I say "That's not funny. That's actually in appropriate. You know We can tell the cops on you. THIS is why they keep talking about sending you to boot camp". Then threw it back at him two times trying to aim at the head. And he goes "Shutup. Everytime you talk you talk its retarded". Advice on how to deal with this