Thought...
Actual test = any man that has such a fragile ego that he'd feel emasculated by a strong and powerful woman like Tomo is not good enough for my daughter! Do my daughter and this boy share a strong enough bond to face any challenge the world throws at them together?
Yeah, don't read too much into the "Fin" It was a joke, like he was TKO'd or TPK'd from holding her hand is all. Not saying it is the end of the manga.
"The best position for the girlfriend is a few ranks behind the boyfriend"? Hey boys. If your ego is so fragile you can't handle a woman who is your equal or better at some things, shame on you.
EDIT: Of course I get that she was the one that said that. My comment is protesting against the kind...