You misunderstood. Him being away is actually a good thing. It's his interactions with her, the constantly shit**** on her and treating her as a lesser person that could motivate her to commit suicide, she is a prideful person and was looking forward to taking over the hotel but she missed her chance to, ontop of that lost people, like she was going to go insane so it's actually good she has a side piece even if he is shady to ground her and detract from her problems.
Yeah he worked his a** off but that doesn't mean he needs to take this out on the FL knowing full well how she was raised, read the later chapters, he knows her situation exactly and is being a POS. Even when he hurts her he is incapble of apologizing, this is probably due to his upbringing but he is still way too toxic, for me to like him or even root for him. I can't like a person who takes pleasure in making someone cry, knowing full well they are miserable and unhappy with their life. Even when he tries to help her the way he goes about it just feels too bitter to swallow.
It's more of a I wish these two character could exist separately and not be tied to each other, because they both need healing neither one of them is fit to give each other.