I am in Switzerland for 11 years, yet recently I got my C permit through
a combination of these years plus being married to Swiss citizen.
On my C permit is written Famillienangehoriger.
Anything happens to C permit after separation or divorce?
For example, if an angry spouse may want to hurt you and do something about it?
No, unless you don’t meet the requirements to have your C permit renewed. You need to be able to support yourself financially, speak a Swiss language and be integrated into Swiss life.