Thanks epheme. Yeah, I remember my quasi friend and I used to bicker a lot though it didn't seem like we were bickering at the time. We both genuinely seemed to like spending time together and had a lot of fun. However the life choices I've made that made sense to me seemed to really piss her off, and the stuff I was doing that seemed pointless to me always brought praise from her... The only thing that put a lot of strain on the friendship was her occasional outbursts which I didn't know how to deal with. The friendship is actually much easier though than some of my mirror and extinguishment friendships. I really cannot seem to keep IEIs or EIIs as friends without wanting to blow my brains out sometimes, but apart from the rare fight it almost never gets ugly or even disappointing with IEEs. I'm thinking maybe that's due to shared extroversion?
I really don't get why everyone says not to date your quasi. I could easily see myself dating a male quasi. The things that annoy me about them are small details not worth actually taking seriously most of the time.