Older mature uke? Like actually emotional mature please. I always see older ukes who just ...

This is my specialty
Here's my list of just older gentlemen
https://www.mangago.zone/home/mangalist/2558323/

A few of my favorites that hit what you're looking for, some of them do have emotionally stupid moments but they're mostly a panic of age gap/being interest in a man.

Koi ga Ochitara and Koi ga Michitara
Ways of Parting
Old-fashioned Cupcake
Mitsuya Sensei no Keikakuteki na Edzuke
Kimi no Tonari de Yurarete
Sonokoi Jihanki de Kaemasuka?
Far from Romance
Ikeoji Monster to Zettai Reido Danshi

THANK YOUUU (๑•ㅂ•)و✧