Ignore them. They're just looking for attention, and they're jealous that you're getting some.

Before we went no contact with my in-laws, I used to enjoy telling them, "Well, that's nice, but right now it's (insert name's) time to shine," in a school-teacher-talking-to-bratty-toddlers tone of voice, and then immediately turn away from them. This only works in public, and it'll earn you hell once they get you alone, but its worth it to watch them react to being treated like a spoiled child.