My wife also hates clothes shopping. She used to get stressed out about it to the point where she would put it off until it was absolutely necessary, and then I would need to go and help her find things at the store.

Thankfully, she has got over that now. She still doesn't like clothes shopping and puts it off as bit. But when she needs to, she has more patience when looking for clothing and doesn't need (or want) me there to suggest things. So it's pretty much a perfect situation (for me at least).