Aquarius & Scorpio Trust

How on Earth is it possible for two honest and straightforward individuals such as Scorpio and Aquarius to have such a problem to trust each other? The problem here shows its face when they get too close. As soon as Scorpio starts to assume that Aquarius should be tamer and belong to them in a loving relationship, it will result in a forceful rebellion and the counterattack of their partner. Things could really get out of control if any sort of manipulation takes place, and unspoken tendencies might tear them apart in a matter of minutes.