Why my roommate asks me how much I have studied and then questions if i tell him the truth?

i am a male, medical student and this guy is my roomie.. he spends more time reading than me .. well i am ambitious and aspiring student but his question puts me in a difficult situation as i dont want to lie as well as i want hide the whole truth.. because if i tell him i read more than him in less time.. he gets jealous and starts praising me.. saying "how did you manage to read all this in such limited time"' .. you are gonna top .. i get conscious lose my confidence and i eventually end up in a situation where i keep thinkingl.. "i should answered him the other way" .. i am getting crazy.. a part of my own mind is tying myself to a tree thinking "i shouldnt do better than him.. because maybe i dont deserve" i feel like a ferrari accelerating, its wheels rolling in soil but to its rear end it is tied to up so it cant go ahead.. i am pending the whole day fighting myself.. about why i am getting bothered by this silly thing.. but suddenly a thought arises and fear arises when i see the ropes, a part of my mind tying myslef to something.. time is running.. other guys are reading and i am entangled in this .. help me anyone