I have heard that pot has a negative influence on sex, but have no experience first hand.

Honestly, I'm wondering if he's depressed? His friend dying could have had a huge impact on his own mental health, and he's just not there yet. I also wouldnt be surprised if he had some self esteem issues in the bedroom...

I am also interested in what Hamster said; how does he see the problem? What is his take on this whole thing?

He's 29... What does he do for a living? When my husband was extremely stressed about work, his sex drive was non-existent. Is he using pot to self medicate anxiety or stress related issues?