an ISTp married to another ISTp? thats strange.
Anyway, if she's married I don't know what's the problem. Why do you even consider her for anything more beyond mere friendship?
To me it sounds like its time for you to expand your horizons. You are also talking about something that happened 2 years ago and then you say she's already married. Just move on and meet new people. Keep her as a friend if so.