How do you know when your girlfriend is getting fat?
...she fits the wifes clothes!!
Good thread! Lots of good info in here. I think communication is the big one. A lot of us blokes aren't really great at saying what we want or feel. A lot of women aren't that great at being honest about it with us either.
I always found I could make any relationship work. It just depended on what you were willing to sacrifice for that relationship, and how you felt about those sacrifices. A good partner will be on the same page. There will be compromise, but it will be balanced.
People change, situations change, time keeps changing. Nothing wrong with periodically evaluating your relationship and making sure both still want to keep on down the path together. I figure thats a better option than just sticking it out unhappily until reaching a point where one party looks elsewhere.