This idea that your love will win through sheer willpower is very toxic, because 99% of the time the thing that prevents your love from happening is the other person, and whether their reasons for saying no are good or not is irrelevant.
Ayaka is forcing Hiroko and whether it's for the best or not is irrelevant too, she should just stop.
I love Ayaka, but I think my love for her comes from romanticizing something that really shouldn't be.
Point here is that Hiroko is also desperately in love with Ayaka as well and has been for a while, and Ayaka is cutting through her self-sabotage and fears by being a charging bull. Hiroko is not that toxic as a potential girlfriend (her being a player is reflection of her yearning for a relationship she never dared to have), she's just destructive towards herself because of all that previous trauma. It's not "you'll learn to love me", or "forced sex to spark love", "I'll make you gay/straight" or any of those other truly deplorable tropes.
As for whether they could stay together, I think it is a completely moot point here, even if 10 year age gap relationships aren't the most stable. Ayaka wants to date Hiroko of today, she's not worried or concerned about few years down the road. Hiroko might be, but she's getting the better side of the deal with a cute and much younger girl literally throwing herself in her arms. Even if it ends at some point, at least she'd finally experienced a proper relationship with someone who wanted to be with her.
I also don't think Ayaka has as many false ideas about Hiroko anymore as she initially had, as she's had few bitter moments with her and made effort to learn about Hiroko and how wlw relationships are in reality through other people who are like her and have observed Hiroko through these years.