Ok, i only know a few things that are:
The main-chara has the problem of getting an erection easily,
His roommate falls in love with him, but won´t say that at first...
tough they kiss and the RM touches him (i think they had sex too but i don´t really know that part), his RM only tells him he´s going to help him not getting hard so easily later on the main-Chara still get´s hard easily but only if he sees, is being touched, etc. by his roommate .

I know it´s not very much info, but i hope someone can help me...

Critical Lovers

Yes! 😃 That´s it! :´) Thank you soooooooo much! 😀 😁