This isn't really a big deal. A lot of introverts are friends with extroverts because they're more comfortable doing things they don't want to do. It's no different than being friends with someone because they work harder to maintain a line of communication. So long as you show appreciation for that dynamic it can be healthy, especially if you're up front about your struggles.

Lots of extroverts would appreciate how they're allowed to be the center of enertainment within the group or that they're allowed to take the reigns on what the group does. So long as it's symbiotic you're needlessly dropping potentially amazing friends by overthinking and applying your version of fairness that probably doesn't match anyone elses version. It's far better to just put in the effort you want to put in and keep expectations at a minimum.