In my teen years, I would've just said "but love conquers allllllllll"
but now, I personally think there's a bit of foundational incompatibility at play-- Misono has big reservations about coming out publicly, and Asuna not only doesn't have the same issue, she actively seeks and desires to display her affection openly.
Like, if it's not now, it's going to show up another time for when this topic arises again. The issue isn't even exclusive to just them-- this is and was a big issue for a lot of same-sex couples in conservative societies/families.
Honestly can't really see a way forward without
1) Someone compromising heavily
2) They move to the outskirts outskirts / a different country
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To add to the poster above me:
I agree with your assessment that Misono is all talk lmao. She's def loves and values Asuna, but she def prioritizes herself and her own self preservation first (which in her case is flying under the radar as a normal person).
Like, she's pretty self serving-- personally I think people who cheat, regardless of the situation etc, are by definition self serving first. Compassion and consideration would be if they broke up properly beforehand.