Sometimes when she wants to have sex i'll just say i'm not feeling well at the moment or I'm tired. The truth is I feel like my sexual attraction to her is dwindling. Sometimes I can barely get hard, not as much as I used to before the relationship.

She's an amazing girl, has all the green flags and she's there for me. I dont want to break up with her but I'm just not as turned on by her as I used to. What to do?