I want to express how someone might have an unfulfilled social need and seek to satisfy it in the wrong place. For example: someone has a romantic social need yet seeks for it to be satisfied from a popular, professional Twitch streamer; or someone has a friendship social need yet seeks to satisfy it with their therapist, which is inappropriate/unprofessional.
Is there a common idiom that describes something like this? Or can you come up with one?
I came up with "looking for an orange in an apple orchard", but I'm not sure if it captures what I want to say.
(also, I read the responses to Phrase or idiom for funnelling efforts in wrong direction, What could be an idiom describing the action of looking for something in the wrong place?, and An idiom meaning someone's doing something useless and has no result at the end, but they don't have the nuance I'm looking for).
Thanks in advance!