Yes, I knew my husband had a hobby before I married him. I just didn't realize until after we were married that it was an obsession. The obsession won. We're still married but live separate lives. There's no love left because he quit giving time to the relationship. That's the short version, but I agree they don't change after marriage. I saw it but ignored the impact it would have over the long run. We've been married 15 years. Two happily.