Kids don’t really talk like this. He wouldn’t say, ‘How do you like it here?’.. he’d say ‘What’s it like here?’
And he wouldn’t ask if the Cox was ‘abusive’.. he’d say.. ‘creep’ or ‘perv’ or pervo or pervert or what ever cool word is to use about a grown up who’s a bastard to them. Or, he’s just ask if Cox was ‘OK’. You could even use the exchange to elaborate on something one of the boys notices about him… like… ‘What is with that cologne he uses?’ or ‘Why does he always smell like strawberries?’ Some hint and something gross about the guy that makes the kids a bit uneasy. And do these kids say ‘violated’? Really? How about ‘creeped-out’ or ‘grossed-out’.
And he wouldn’t say ‘You seem awkward here.’ he would simply ask ‘How long have you been here?’ and then perhaps show his surprise that it’s that long by saying,’ Oh, Really? That long?. I would have thought… oh.. well, never mind.’
I think this is a very strange plot and context. You have to try to make these people seem real, not like they’re reading perfect English constructed on a piece of paper. (I don’t think this kid would say ‘Chilly’..) The main characters are going to have to be likeable in some way so that your audience will care enough about them to keep watching. Give them personalities, or talk to your actors about helping create one for them.
Good luck.