Why ml deserved better

as I rewatched it the fl is annoying like the ml deserved better because 1: she hang out with boys that like her and stuff 2: she gets mad when he jealous BUT he has every right cuz in the end he was right about the brother liking her 3: he told her not to hang out with his step brother but she still did and even danced with him 4: she does communicate with him she ignores and lies about it 5:he don’t even hang out with girls just her and the step brother ex but it’s good and they cute ?????????????????????????????