Axl and Sue's relationships

I just finished the entire show and I found it curious how both Axl and Sue were kinda the opposite of what I expected when it came to their romantic relationships. Axl is always playing it cool and detached, which led me to believe he'd be a playboy at first, and yet he would often be a simp for his girlfriends and also extremely loyal and noble, just as he would usually prove himself to be with his family whenever his facade came tumbling down. As for Sue, she would always prioritize herself and her wellbeing and she found herself in some unfulfilling relationships which she never tried to romanticize or deceive herself about; she knew what she wanted and she went for it, and never tried to sugarcoat her unhappiness. In Brick's case I find the most similarities between normal life and romantic relationships, but I found it pretty interesting how Axl and Sue turned out.