What To Do??? What To Do?

I don’t know what to do. My Ex is “in the area” this weekend and I don’t know whether to live up to my reputation that she has been giving me. Which is by the way… a horrible person, a bad husband, ect. Plus not to mention she has said that I refuse to let her see the 2 kids I have. Which is a bunch of crock, cause I went up to where she was twice (which is in a different state) on my own dime. On one side I want to tell her to go F%*k herself. And never come around the kids and myself. And on the other side, I have the kids that probable want to see her. But the thing with that is most likely she is only going to see them for an hour or so. Then I have to pick up the peaces on why she left, why she can’t say, and the crying the whole day. What should I do? Should I make an effort to let her see these 2 kids even though she has made no effort to see them after she left a year ago? Or should I just tell her to F%*k off?