Okay, that's a fair assessment. It can little frustrating when romance characters aren't all in, at least in affection.
I blame it on nature of the job. Psychiatrist are supposed to guide minds, not make patients do anything.
He may be to empathetic to try and do harm.
Oh wait, that's a different story. Lmao.
The sentiment is still a little there. Doctors aren't supposed to cause harm. His empathy for the espers being experimented on all the time probably makes him go a little easier on them. And he was saved by one of his patients when he was young. Probably idolizes them a little.
Also we have the world building of it's not normal for a regular person to date an esper/guide. Because of the way guiding happens.

I freakin cannot stand doc