You got to seek out equally yoked individuals.
The person you are in a relationship has to have as much to lose as you do and their hustle, ambition, and assets need to be similar as well.
A lot of men see a woman they are attracted to and want to sleep with and simply give her the world, but you have to look at the ambition, hustle, character, how she treats you when she's pissed off and all of that. It will tell you a lot about what they would do if certain aspects of the relationship went south or if you all parted ways.
Most women are smarter than men in that they will chose a partner that can possibly bring other things to the table besides a warm body to sleep with. Most men don't really look to far past the surface, but then they wonder why they end up miserable and having to forfeit half of their assets later on.