Yeah, as frustrating as it might be, I think it would be best to just shrug it off and find someone who is open and willing to help you resume the steps. I wouldn't jump to the conclusion that maybe your sponsor was bothered by the disruption due to your life circumstances. That would likely only create another resentment, but then again, since you're on your 4th step anyway...😉
Great job on staying sober through it all, though!