http://www.mangago.zone/read-manga/katsubou_no_manazashi/
it's the second story you're looking for I think. It starts from page 129
I think it's the second story
http://www.mangago.zone/read-manga/hajimete_no_shitsuren/
http://www.mangago.zone/read-manga/bousou_kareshi/
chapter five has something close to what you're looking for. hope this helps!
Thank-You it is very similar to the one i'm looking for!!
the seme goes to study abroad, and leaves the cute little uke uke is now older and is getting ready to go to college and the uke is worried that the seme wont love him anymore because he is more masculine and less cutewhen seme comes he does not recognize uke... and etc