If not trying to leave either
A. He don’t make enough to get his own crib.
B. They go half on everything and he never saved so he can’t come up with a deposit on a new crib.
C. He not working.
If he don’t confront her….
She will slowly start disrespecting him openly and boldly. Eventually she will kick him out anyway if shyt gets serious with the dude she seeing on the side. If he is working, he needs to start saving all of his disposable income so he can leave.