In my opinion there are 6
-1 they are the strongest it is very difficult but same the time it needs courages so much too, only you are going to love without love back.
-2 they have very good patience for example one sided lover came out the classroom for just see their lover, came online at odd moments and being ignored by chat.
-3 this so good, they have not any expectation from their lover their love is pure and not any conditional love.
-4 they don’t need to talk to whole day your simple ‘hi’ or even ‘smile’ make them happy whole day and convince to think about all day and blush it.
-5 they hurt most of the time from you but by your little attention from your side can make them walk through air.but they are very strong.
-6 no matter how busy they are they have always enough time to help you for there where you left anyone or at your worst time they finds ty way to reach you.
If someone have like this guy trust me he/she is blessing.