This is one situation where I think for someone you see on a regular basis, texting would appear to be the wussy way to tell her to stop asking. Unless she is bugging you about it via text, that's one thing, but I'm assuming she's doing it in person, which warrants an in-person response.

I hate confrontation, too - I am *always* the people-pleaser and peacemaker - but you don't have to be rude or mean about it. Just say, "We've already decided what we are doing, and it's between me and my husband." Any more nosing around, and you can either say that you no longer wish to discuss it or simply change the subject.

These type of people don't take hints, and they only get nosier and more annoying as you get farther along. My husband and I have our own office with two female staff members. While we love them, they crossed some boundaries with me, and I had to put my foot down. Unfortunately it was a bit in anger/frustration but got my point across. They did continue to push the envelope a little, but they stopped doing the things I told them I wanted them to stop doing (touching me or making comments about how big I am).