She left because she could. She left because she wanted to.
If you are under the age of 30, the short answer is no. You haven't established yourself yet. If you are in your career, it's either just starting, or it's just starting to take off.
If you can't afford the lease, the rent, or the mortgage on your own, you don't do the lease or get the mortgage. You don't get a place together.
http://robsays.net
https://anchor.fm/redpilled