You clearly haven't been paying attention
The fact you only pay attention to petty negative things shows a lot. Asahi does so much for Masato just as how Masato goes out of his way for Asahi. Asahi modified almost an entire building according to Masato's taste and with even customized it according to Masato's height. They talked and opened up about their feelings, he respects Masato's space and pace. And all you guys see is his "jokes" and used it to clarify he doesn't love Masato enough.
The boob jokes were NEVER a problem in the series, you guys are the ones being overly sensitive with this and make it into a problem.
I still feel like Asashi doesn’t love Masato for some reason....
He would talk about tits and flirt with women just to get Masato jealous, it’s annoying.