What,

She knows you have been devestated, so don't rub that in or make a snarky remark. How about a little honesty that is neutral? Something like, Houston is ok, not fond of the weather, I'm doing ok and working on doing better? Your words and keep it light. Remember to BREATHE before you speak and if you find the call getting to tough, you can just need to go. Do keep it short though.