It can be painful to feel like your partner isn’t prioritizing you.

 
In this sensitive situation, where you feel like your partner is selfish, or isn’t looking out for your needs, there’s one thing you can do.
You have to start prioritizing yourself and take care of your needs. That’s the only way.
We can’t control or change others, but we can make sure that our needs get met.
So, if you want to go to the gym, or if you want to go out on a girls night, but your partner isn’t offering, you have to decide what you want to do and do it yourself. Not in aggressive, assertive, oppositional kind of way, but in a calm way, explaining that those are your needs and you need to make sure they’re met, and that you request from your partner to adapt accordingly.