Dear Meghan: I have become a stepmom over the past four years and love my new family. We generally function together well and enjoy spending time together. However, I find my fiancé to be overindulgent with his daughter — despite his claims that he isn’t. I often find myself in the role of saying no (to desserts with no veggies or to more toys or art supplies) or pushing back on her requests (she does not need a “chill” day after doing nothing the previous two; she needs to put down the screen and pick up a book or skateboard or anything).