DEAR ABBY: Four years ago, I became friends with a co-worker and things took off too fast. Within a couple of months, I became pregnant. We were thrown together without really even knowing each other because, deep down, we wanted a family and decided to stick it out. Well, it’s been a hell of a ride. I ended up having to leave because neither one of us was happy, and it wasn’t the greatest environment to raise our daughter in. I came back a few months later, and we have been trying our best to get along and be great ...