student
He was hopelessly in love with (him/her), but he couldn't tell that to (him/her). He had to sadly watch as (he/she) hugged her boyfriend, kissing each other on the lips, looking at each other with love. He wanted to do that with (him/her) but he couldn't. He needed to stay away, he needed to realize this was wrong. Loving this person was so wrong.
He knew that, he did... but no matter how many times he scolded himself thinking that, he thought about (him/her) still. Wondering how it would feel to have (him/her) wrapped around his arms, holding (him/her) tight.
He just wanted to love (him/her).
But he couldn't, because that was his student.