If you want your partner to change, change yourself. If you wish another to treat you in a certain manner, try treating that person in this same manner. Love engenders love. Openness engenders openness. Fear and suspicion engender fear and suspicion.
Somebody has to make the first move.
Each one of us is responsible for the quality of our own inner state, no matter what happens to us in the external world. At any moment, in a potential conflict situation, you have the choice either to de-fuse or escalate the conflict. Positive expectations about another's motives or intentions engender positive outcomes. To expand your range of choices, experiment with non-habitual ways of dealing with your negative emotional reactions. Do not bring in past incidents from this or other relationships to bolster your position.