What these guys have said is all great stuff. Realize your going to need to learn how to schedule your time better. Once you get maried and have kids, when you get home at night there is going to be a lot more to do then go hang out. Find someone who is into this lifestyle if its something your choosing to always be a major part of your life. Now if your into this chick, don't push it on her. Like I said earlier, she probably wouldn't care if you didn't talk about it all the time. I know some people say screw that lifting is everything. This simply isn't true for everyone, and that is ok. I would also say what the one guy said in the forum, thd heavy dude. There are even a lot of pro bodybuilders that are dedicated, but have a normal social life, Learn this because that is good stuff.
I know that I can be obsessive over things, it's natural for me. So what I tend to do is, it's all I talk about, think about, want to do. What I don't realize is not everybody around me cares as much as I do, and they don't want to obsess over it like I do.