Sometimes I've caught myself acting too emotionally over something that didn't matter, then correct myself and apologize if needed. I don't think I 'test' my partner though, but then again I am in what I would consider to be a 'safe and secure' relationship. (female, if you haven't realized yet) But a testing of boundaries to ensure security would make a lot of sense, especially if you did that as a child and didn't get the security you needed. That itself seems like a primal function, since humans need social security. I can see how it can be taken to far or be a negative element in a relationship though. I wish there was more research into this specific behavior that seems very exclusive to women. I'd be very interested to read about it!