It's a bit rude, but it also depends on the way she says it. Depending on her tone, she may just mean "yes, because we are free."

I would be annoyed by that, too. I have received that type of response from my SIL and it is rude. I would never respond to her that way. A couple of years ago I started copying all of her family on emails where I am replying to something rude that she has written (when it makes sense, of course, which it usually does because we're discussing plans that the whole family will be a part of). I'm never snotty, but will just say something like, Great, we look forward to seeing you! Although I think the kind of gentle ribbing that a pp suggested, with a big LOL and smiley face, would be okay too and I may incorporate that some time in the future.

Anonymous wrote:

Anonymous wrote:I didn't see the problem. I've heard and given this response and it would never occur to me to find it offensive.

You: you want to give over for a bbq next Saturday?

Respondent looks at calendar: we're not doing anything, so sure.

What's the problem? I think you're just looking for a reason to be offended.

This.

ITA jesus christ people.

I'm guessing there are other things about your SIL that bother you and you're overly sensitive.

Wow done of you are real over thinkers