Why do some people fall in love and marry and some don't?

That is what society expects of you. Your parents want you to be secure happy, and to have grand children. You just want security, love, sex on occasion, possibly food, and a dependable friend. A good night's sleep is not a likely outcome. So you do it and a few months into it you start to notice things. Things that they do that are strange. Months turn into a couple years and you're paying for marriage and mental health councilors, chiropractors are you going her more than you can and In my case a series of events in her young life erupted out of the blue and led to hospitalizations and all sorts of mayhem that even after having a child there was no refocusing on the marriage so she departed for space and solitude.