Low sex drive in gay male?!

Im just wondering.. Ive always had a Very high sex drive.. and probly been with around 18 males in my life.. Recently i had the perfect lover.. And had a high sex drive to him.. But we broke up and since then i was depressed and 0 sex drive.. its been 3 months and i got a new lover.. but he isent nearly as good looking or experienced as my Ex. I tryed to do a open realtionship and i cant find a sex drive in any one they all seem like they are not sexualy attrative.. Even guys id die to have sex with.. look like nothing.. Even odder.. i went with my ex somewhere and i was turned off by him aswell..

When i think of sex i miss.. Is probly the last time i was with my Ex.. And he probably did me for the best sex ever.. And i cant really.. Feel sexual pleasure any more..

I tryed toping to change it up.. and i Got soft very fast.. And couldn't even stay hard.. I tryed to bottom and it dident work.. i enjoyed it but something in the back of my head i cant really read.. Hinders it..

I wanna enjoy sex again i feel like il never enjoy it again.. What my issue?