I will tell you that you're doing a billion times better than my uncle, and millions of times better than my friend in LA... It's not fun, it's not good, but I guess be happy that it isn't ugly as hell... cause then you'd be telling us about her blowing up your car's engine, slashing tires, etc...
Sad fact of the matter is that these days women are given the impression separation is highly advisable on a whim. The short-sightedness of it often comes back to haunt them. My mother has dreams about wanting to live in the house I grew up in with my father until X age where she split. She went off and had a career, good one, but now craves the comfort in her dreams that she so willingly tossed aside.
The laws around divorce (varies state to state greatly) and the roll back of effectual prenuptial agreements (many states) has left me as a younger guy thinking 1. I won't get married. 2. She has to either have her own apartment or job, which ever stops alimony/palimony. It's really screwed up because I really like the idea of getting married, but basically the benefits of getting married in the past only apply to being single these days. (except taxes, UUGH)