I 19f and my bf 18m had a good sex life until a few months ago,(Been together almost 4 years) his sex drive started decreasing and now he’s struggling to stay hard/ get hard. when he does get hard he says its like he’s not ‘all the way hard’ he’s been getting frustrated because he can’t finish. he can masturbante easily and finish then but when it comes to sex he struggles with it and doesn’t know why. We’re looking into some advice that can help this because he really wants to fix this issue.
Edit: Is there any tips on how i can support him through this? i dont want to make him feel bad over this.