Responses
Therapy Game is the closest to your description but uke dates seme on a kind of bet but seme falls in love first
Sono Suki Honto
http://www.mangago.zone/read-manga/aishuu/
This is kind of similar like the uke runs away but not because of a bet but rather because of the seme's selfishness (the seme basically thinks like a ten year old)
Need some suggestions! like the seme dates uke because of a bet, while uke is actually in love with seme. When seme and his friends were talking about it, uke heards it and he either hated seme or ran away from the seme and showed up after years
please helpppp