My experience was completely opposite. I met my future wife on a backpacking trip; her friend and her had done several trips before I met her. We hit it off immediately and went on several trips afterward. She really seemed to enjoy it, and the only time she complained was a trip shortly after she became pregnant and was suffering from morning sickness (can't say I blamed her).

As soon as we got married, however, she stopped going. Then she began to resent that I wanted to go by myself if she didn't want to join me. That was the beginning of the end.