How do you be cold hearted but still love?

You need to take acting classes so you can learn to pretend to be normal. A normal person does not try to "show" people anything, and does not tell himself he doesn't need people. The fact is if you don't get companionship you turn into a weird person. But you have to act normal to get companionship. So get those acting classes.

Go to a book store and ask for Elizabeth Browning. You can carry the book with you and when you meet a girl you can tell her you need some coaching on your vocal presentation. Then sit down with her, you on the right and she on the left, and read from the book. That is how you get the companionship you need.