Post Coital Dysphoria

hi everyone! my boyfriend currently has what’s called “post coital dysphoria” - or feeling agitated, depressed, and/or lethargic after sex. we’re currently looking at different methods to help with this, because he hates feeling that way after and it makes him not want to have sex because he dreads the feeling afterwards.

i’m just wondering if anyone has any experience with this or knows any way to help or reduce the feeling?? also any information you have on this topic is greatly appreciated! i’ve been looking more into it after i found out. thank you in advance.