Yeah, I think it's inevitable that, in your situation, you're going to be much less inclined to be social with JWs. Not just the fact that most of the acquaintances you make will quickly abandon you when you make an exit, but also the mental and emotional stress of having to hold part of yourself inside to do it. There's always an undercurrent of JW nonsense in any group of JWs (at least in my experience) and having to repress yourself in order to not rock the boat or out yourself as an apostate before you're ready can take an enormous amount of effort. What's more - that habit of repressing yourself is very unhealthy and (I'm finding) can really come back to haunt you in future relationships even after you've left the cult entirely.
As someone who's very introverted myself, I empathize with your plight. I'd suggest that you really try to make an effort to make friends with non-JWs. You might even try being open with non-JWs about your current situation. I wouldn't open with it, but once you've both opened up about your personal life a little, it could be appropriate. I've found that I've consistently been surprised by the empathy and compassion I've received when doing that, and it can help you to train yourself to be more open and authentic, which will only help you make more friends. You're in a difficult situation, and you're likely to need some support system at some point - better to start building it now.