Really liked the main story.. Not a fan of the one shot stories though.
1st oneshot: Well, they could be using each other.. Like, the uke knew what he did when he somehow used the seme as replacement for his unrequited love, then the seme intentionally got the uke drunk to get some action again..
2nd one shot: It's very realistic. Both Asaya and Yuu were worried about being rejected and all the complications when they were students so they didn't confess their feelings.. So when they met again a decade later, feelings re-emerge, but unfortunately, Asaya already had a family and Yuu was living with his girlfriend/fiancee.. Asaya tried to make "them" happen since he could no longer control himself, but thankfully, Yuu got back to reality soon enough and clarified that it's already too late for them since there are more people directly involved if they pursued their "mutual unrequited love" if that makes sense. Ugh. Well, sometimes, love really requires timing.. Too bad for them, but even though I like Shounen Ai/Yaoi so much, I still wouldn't tolerate it if they cheated. Well, I mean, basically, they already did cheat because they made out but I can only be thankful it didn't go further. For others, it may not have been a big deal with the other party being the same sex as their partner who "cheated," but for me, the gender or sexual orientation doesn't really matter. Cheating is still cheating. Forgiving cheating is almost impossible in my case, but of course, that would still depend on the character of my lover. If the good things about him outweigh that mistake and he can swear not to do it again (and if he does, it's over, no questions asked), then go.
Yukidoke no Koi