1. Have strength.
Don’t talk about how strong you are. Just be strong. Endure hardships, solve problems, press on. Don’t be the dog that barks, be the dog that bites.
2. Be you.
Have friends, even if he doesn’t like them. Have opinions, even if they’re different than his. Especially if they’re different.
3. Be independent.
This applies to men just as much as women, but there’s nothing sexier than someone that can take care of themselves. A relationship should be a partnership, not raising a child-like dependent.