General

So It’s almost impossible to find a relationship with someone who’s into this detail. I don’t think it’s wrong to feed someone and have them gain weight if they are into this fetish’s because they would be miserable being thin.

Do u think it’s wrong or immoral to be in a relationship with someone and have them gain weight if they aren’t a feedee but just a normal person who consented. Like they could be in a relationship that would be healthier as the alternative.

Not at all. Some thin people might prefer to be heavier even if it isn't a fetish

No harm in asking I suppose they can say no if they don't want to do something like that.
I asked a BF to gain for me and while he did gain 15 - 20 lbs but he didn't care for the feeling and lost the weight.