Sam may feel a lot of peer-pressure since his friends are in sexual relationships and will talk about it in front of him.
Types of drugs that relieve depression...
(SSRIs), such as citalopram (Celexa), escitalopram oxalate (Lexapro), fluoxetine (Prozac), fluvoxamine (Luvox), paroxetine HRI (Paxil), and sertraline (Zoloft)
Hope this helped