I remember reading a yaoi manga where the ml loses his memories at night only or smth like...

I remember reading a yaoi manga where the ml loses his memories at night only or smth like that and mc suffers from unrequited love and can only with be with ml at night... cuz the ml is actually married to a woman and he doesn't remember what he does at night ... it was a sad story I don't remember if it was one shot or an incomplete manga. Please tell me the name I forgot about it cuz I read it like 5-6 years ago ....