**Unsolicited opinion**
Ladies and gents, as someone who got into a serious relationship in Buenos Aires at the prime going-out age of 23 (young enough to have lots of energy for those late nights, old enough to avoid doing anything too stupid), let me say that if your SO makes you feel like you can't go out anymore even though you still want to, something is wrong. To each their own--some people simply don't enjoy going out to bars or boliches, and that's fine. And of course, there are always those nights when you'd just rather stay at home and watch a movie or whatever. But there's no need to sit at home every weekend just because you're in a relationship if you don't want to sit at home! Have ladies'/guys' night, go out in mixed groups, make it just the two of you, the options are endless. A relationship shouldn't be a prison, but if you don't trust each other it may well feel like one.
It's funny, I was thinking about how much Argentines like to go out and prioritize socializing the other night. My boyfriend and I went to a dinner party with two couples from Córdoba. One couple is in their late thirties with three kids, all of whom were asleep while we were having fun at their apartment. The other couple, both in their late 20s, got married less than a year ago, and the girl is almost five months pregnant. The sobremesa didn't end until after 2:30 a.m. As we were leaving, my pregnant friend suggested we all get together at a bar somewhere the coming week. Yes, even though she isn't currently drinking and obviously can't do anything too strenuous, she is down to hang out. I really love this about Argentines. I simply don't know very many Americans back home who approach socializing in the same way, especially not once they have kids. If you are in a relationship with an Argentine who never lets you go out, or never wants to go with you or go out with anyone else...sorry, something is probably off there. OP, sounds like you dodged a bullet. Enjoy your nights out!!