The stress of displaying extreme sexual interest in girls at a young age

Ravi is 16 years old. He is quite happy with his friends and not only does he not feel any need to seek girls as even friends, leave alone sexual friends, he hates the idea. He is quite innocent about sexual matters but in his all boys school, he hasn't faced the pressures of manhood, since he keeps himself only to his few best friends.
After finishing his 12th he goes out into the big bad world -- the college -- for the first time and faces immense pressure to prove his sexual interest in girls. He makes a new friend who tells him things like, "are you a man -- you don't seem to be interested in girls?"
This affects the young psyche of Ravi -- who is now 17 -- immensely and he starts working hard to develop a sexual interest in girls. He starts by watching girls all the time, when he goes out with his best friend every evening to the market. It's a big stress for him, and he hates doing it, but there is no way out. He is still cut to the core at the remark that questioned his very being a man for not showing an active interest in girls.
Now, Ravi has started doing this -- watching girls -- everywhere and everytime. In fact he overdoes it. Once his cousing and aunt were visiting him. His neighbourhood girl came into their house, and in front of them, he leched at her -- as it had become quite a habit for him by this time, and his young mind was unable to determine that it will leave a bad impression on his relatives.
Ravi not only watches girls all the time, he also tries to consciously think about them -- especially in a sexual way, so that he can develop a sexual interest in them, which is almost lacking at this point of time. Ravi is quite panicky about not having an enormous sexual interest in girls like his friend.
So much so, that when he gets desparate about developing this interest and it doesn't work he thinks about committing suicide.
Today, it has become such a habit for him that wherever he sees a girl, he gazes at her lecherously, without thinking... whether the girl is sexually appealing or not. But known only to Ravi, none of them really interest him. He'd rather play cricket and have all the other fun with his male friends.