http://www.mangago.zone/read-manga/boku_no_ano_ko/
This might be it but I think there are quite a few mangas with that storyline.
is it this ???????
http://www.mangago.zone/read-manga/love_stage/
i hope this is it
is it this ???????
http://www.mangago.zone/read-manga/love_stage/
i hope this is it
wait i don't think this is it lol but i remember reading something along those lines tho flip let me check my history
Try this one
http://www.mangago.zone/read-manga/boku_no_ano_ko/
Hi, I saw a this yaoi like 3 years ago about a guy waiting for a "girl" he know and promised to become his wife and then "she" shows up and it's a boy. He's is love with the protagonist and wants to be his wife, does the housework and everything. They end up together. The protagonist is a student and I think that's everything I remember... also when the guy shows up, they start living together. If you know pleaaaaase tell me the name of the manga. Thank youuuu