Welcome to the SR family!
I'm glad you took the time to introduce yourself. Nice to meet you.
I also have teens in my home. I was a SAHM for about 12 years and went back to work a few years ago.
In my life, I wanted more for myself and children. I didn't want my children to think that accepting unacceptable behavior was how a relationship was supposed to be. I didn't want my son treating his partner the way I was treated (disrespect). I didn't want my daughter accepting disrespect and empty promises like I was receiving. I wanted to be a better parent and role model for them.
Alanon and SR have helped me learn to take better care of myself. Self-help books like Codependent No More helped me let go and let the other adult in the relationship take care of themself and suffer their own consequences.
Please post and read as much as needed.