I think people treat relationships and other things that they're inexperienced with as too big a deal. I guess their emotions swirl over things they have little control over. Or maybe they're more in love with the idea of having a person in their life more than the actual person that they do have in their life.
But in my view the best thing to do with night time women is to know what you're getting yourself into prior to spending a lot of time with them. And to always treat things like it's no big deal. If a girl likes to party -- but she's fun to be around -- then don't try to change her or to be her prince charming. Instead just don't get too emotionally invested in her. Need her less than she needs you... and you'll be just fine. This is entirely possible especially if you have enough other women in your pipeline. It's been my experience with party women that many tend to have more experience with men which means they are hyper-sensitive to insecurity and/or immaturity. Especially the ones who are older like 27 and up. And there's nothing wrong with that, it's just something to keep in mind.
In my experience in my Urban East Coast City, party girls are good for casual/emotionally-detached fun, but if you want a more stable wifey situation, I haven't met many in clubs/late-nite bars that I could recommend for such things. They exist but it's harder to find them at nite in a club/bar than it is to find them during the day in a bookstore or cooking/yoga/university classes. Not to hate on what people do, but actions scream and words whisper, and in both my experience and some friends of mine who reside in various cities in the USA, it's a better use of your time (if you want a wifey) to try to find her in daytime venues. I wouldn't have ever guessed so going into it because I tend give people the benefit of the doubt. But after seeing enough patterns you have to learn that you can't do things the same ways twice and expect different results. Certain venues give you more(or less) bang for your buck than others.
And at the end of the day even if a woman is party girl and not a long-term prospect, I personally think the best thing to do is to simply learn from her, let her learn from you, and give her good convo and good sex. She's a person just like everyone else (which means she has feelings) and you'd be surprised what you can learn from people...even night-time/party women...if you're curious and insightful enough to ask the right questions and to be non-judgmental. Sometimes all people really want is someone they can confide in/open up to. Maintain your dominance and your sexiness and your flirtatiousness. Do not be weak. And it's as simple as that... there's beauty in simplicity.
At the end of the day, you need to know what you're getting yourself into, and if you go in to interacting with party women like you're bambi -- all innocent and pure -- you will learn the ropes soon enough.