Girlfriend doesn’t want me to go out with her?

So I asked my girlfriend if I could go out to the bar with her and her work friends and she basically said no in a nice way. She said she wants to spend time without me and Yes we do spend a lot of time together but we never really have time to go on proper dates it’s mostly just me spending the night at her place and maybe dinner like once a week and I feel like going to the bar with her would be fun and a nice change of pace. We’ve been dating for almost 2 years and are in a really serious relationship. Is this a problem or am I overstepping and should give her that space.
Girlfriend doesn’t want me to go out with her?
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