We (Me, W, and kids) usually decorate the Christmas tree together. The kids and I are planning on doing it tomorrow night. Should I invite her to come over and do it with us?
Here is the general DBing guideline about stuff like this- it is OK to invite your W to stuff as long as you have no expectations, and as long as you are going to do it WHETHER SHE GOES ALONG OR NOT. Say something like "W, the kids and I are going to decorate the tree tomorrow, you're welcome to join if you wish." In other words, the event will happen whether she is there or not. If there were an OM then I would agree with the others that you don't invite her. But it sounds like there is not, she's just confused about what she wants right now. So like 25 likes to say, keep the way home paved and smooth.
You don't want to pursue, but in my opinion telling her you are decorating and giving her the choice of joining (or not) is not pursuit. This is more along the lines of showing her what she's missing.
