Geez. As bad as some of his actions are when viewed through modern western morals I find it hard to had Lord Hell. He seems to genuinely care about her. He just also seems to be very awkward and inexperienced with wooing someone, which makes sense considering his station. Woman have probably been either running away on sight or throwing themselves at them with their legs wide open.
While he is certainly too pushy compared to what we would expect in modern times, he is probably being pretty reserved/respectful compared to a similar time period that this would be set in. When she pushes back against his advances he normally seems to back off, he doesn't try and force it. He honestly seems like someone who has never been told "No" and doesn't know how to handle the situation more tactfully. I think if he can keep learning to tone it down and be a bit less aggressive they could work out pretty well.
It doesn't help that she seems to be partially into it/him and as such may be giving off mixed signals that someone as dense/inexperienced as him wouldn't be able to parse/understand.