anyone know any yaoi where the uke is in love or falls in love with a straight seme thanks...

http://www.mangago.zone/tag/straight+seme%2Fgay+uke/

You can try Kathy's Straight list - http://www.mangago.zone/home/mangalist/2964/
She noted it down which one has straight seme or straight uke or both.

http://www.mangago.zone/people/tag/2337/Straight/

http://www.mangago.zone/home/mangalist/30475/