Tenya did really like you at first maybe because you were Stains child the same person that hurt and ended brothers, Tensei's career

But slowly Iida started to enjoy your company and learn to separate the child from the person even if you were very cold and distant he started to develop feelings?

One night Tenya snuck out of his home something he has never done before and he went to a roof top to see if you were there

"Hello?" Iida asks out pushing up his glasses "You here?"

He thought you weren't there for a minute until he heard a noise