If you want people to understand you, you have to communicate with them what you want them to understand. Explicitly. Don't drop hints or clues, you have to say it outright. People are not mind readers, or even experts in non verbal communication, not even NTs.
Hopefully the person you convey your feelings to is compassionate and empathetic. Be prepared for if they aren't though. Don't be afraid to just drop these kinds of people like a shit in the toilet. Just wipe, flush and walk away. They don't deserve your time.