I remember back when I was young and single going to this church to visit with this guy I grew up with. There was a new girl at church, a real looker. But she had this problem of waking up, going in the other room, and a demon threw her against the wall. Then she woke up. It had been a dream. She goes in the other room, and a demon threw her against the wall. She said it would happen over and over again.
I remember my thinking about this girl changed. She went into the 'needs to be ministered to' category and was definitely out of the romantic interest category for me. The other guy proposed to her, was engaged to her for a while. She strung him along, broke his heart, and dumped him. He fell into sin. He started cutting himself. He wasn't looking, but he'd made some kind of symbol. He'd been hanging out with witches during this time, too, and the girl wasn't the only bad influence in his life. From what he said, there was some kind of evil spirit in his room, sitting on his bed and bumping things around. He didn't see it. He told me this stuff about the demon in the room after I had a weird experience in his room.
My point is spiritual criteria over looks, personality, getting along, liking the same music styles, etc.