the comfort of discomfort

Where to begin but the beginning. This year I suggested to the organization that I am involved in, three projects to boost us. One of them in particular, I worked with someone else and then I got very busy on another project, one related to the organization itself. At first the partner was understanding. But lately I have found some passive aggressive behavior and I am frustrated about it. It is very unfair that this person is sending digs my way when we speak. I have brought up the behavior and I have been very dissatisfied with the vague answers given. I am at my wits end! It is draining quite frankly.However, as I write this, I already feel myself getting past this, and for that, I am grateful.