My wife is pretty supportive when it comes to skating. I'm not trying to be a pro filmer or something and she knows that, but she knows it's something that I enjoy doing and makes me happy. She also understands that this is how I hang out with my friends and most some of them I've been skating with since I was 12 years old. She's been dealing with it for 11 years but I guess she assumed when we got married almost 4 years ago now that it would chill out, and I guess I haven't been going out as much as I used to but mainly because of work. Sometimes I'll be out all night filming because of my schedule, this past saturday night I got home at 5am from skating all night hahaha I just told her in advance I'd be out all night skating and she wasn't bummed at all that I slept until 2 the next day. The generator/lights and shit lost it's appeal years ago really, I enjoy going out early in the AM and coming home around 7-8 and just enjoying a whole day, but sometimes with my schedule that is impossible.
Honestly though if all I wanted to do was skate, film and be with friends and not spend anytime with her she would be bummed. Sometimes with life your best bet is to learn to be a professional juggler. I really like to do a lot of things, I usually don't want to turn something down if I have the oppurtunity to do it and it something I want to do, but with life you have to make it work. Same goes for your girlfriend or your wife.
If she isn't supportive at all, and is bummed whenever you're not with her it's time to move on.
By the way, what is life? Do we have a purpose? I don't know I don't think anyone does for sure, but if something like skating that is for the most part a positive thing, I would certianly not look at it as "throwing you life away". In fact some would say that going to college or working 60 hours a week is throwing your life away, and I would agree to a certain point, because if you're not enjoying your life then what's the point right?