I'm the same way...I definitely did a lot of testing with my ex-marriage counselor. I'm trying not to repeat patterns with current T...but then I find myself doing that anyway (the testing). I think much of it is working through past stuff, like from childhood. For example, ex-MC (who's mostly trained in developmental psychology) talked about how kids test their parents, like, "Will you still love me if I do this? Ok, how about this? What about that?" So it's not too surprising if we do that with our T's...since they can sometimes fill a bit of a parental role, especially if we didn't get what we needed in childhood.