He is your best friend, but he is very in love with you, you don't know it since you are very clueless to take hints, one day he was sitting on a park bench reflecting on the love he had feel for you

"oh no,she likes another boy...and I feel sad and at the end of the day, at least I will know that we had something, with my eyes I see her kiss him..and it makes me angry but at the end of the day I know she doesn't love him that much...it will take a while to let her go..."