I've been with my bf a month, we were seeing each other a few months before that and we're fwb a year before that which grew into us being not only best friends but where we are now. For the last six months though the sex has gone down dramatically. He says he just doesn't get as turned on anymore and can't get it up as easily as he used to. Sex has dwindled to about once a week if that. He's still really affectionate, we kiss/cuddle all the time but sex is rare and when it happens it is over and done with in about half an hour. I'm mid 30's and he's 12 years older than me. I feel I've hit my sexual peak and once a week, if that, just isn't enough. He's worried I'll cheat on him because of it which I definitely won't because I've waited long enough for this relationship to happen and wouldn't ruin it for a one night stand. I love him to much to chuck it away. However I am left feeling frustrated and undesired and it always feels like the white elephant in the room. I'm not sure what to do if anything, or if this is it now and I just literally have to suck it up?