
There will be another sequel : https://www.nautiljon.com/mangas/hidamari+ga+kikoeru+-+shunkashuutou.html
I saw some pics from the sequel on the magazine Canna's Twitter a few weeks ago.

It think there was too much pressure for the uke after being confessed to for the first time. It was either accept or refuse. By rejecting the confession, he felt free again (he could finally smile). The seme didn't get mad and was very understanding. That's why the uke kissed him. Honestly, trying to understand your partner can make you lovable.
The officer was singing "Let it be" / The Beatles in chapter 2?! "When I find myself in times of trouble, Mother Mary comes to me.."