It’s no fun when someone rejects you. Especially if you had great communication before hand.
Sometimes you will know the reason they back off. Sometimes you don’t.
It is OK. The pain of rejection and disappointment will wear off
Remember: Poor behavior is a reflection on them. Not you.
If they can’t talk to you about what is bothering them, then they are dishonest, childish and disrespectful.
You don’t need that negativity – just keep moving.