I agree leaving your support would be really hard.
I have one friend and she gets freaks out if I tell her about my hallucinations and "stuff" she worries til shes a mess so I really don't tell her, but I know if I really need her she would listen.
My Husband *sigh* tries to understand what and how Bipolar effects me.
My Therapist, honestly is my life raft. I can be totally honest with him and being in his office is the only time I can really relax.
I'm so grateful for PC. Knowing I am able to come here and find support is amazing !! I have met some of the greatest caring people here.
I guess you need to write a list of pro's and cons. Maybe being able to buy a home and have the better quality of life. Telling your MIL ,some people are "open" to mental illness and some people will never get it.
Good luck with whatever you decide