Name changed but have been on mn for a fair while now.
I work in a role which requires me to do casework supporting vulnerable people. I am supporting a member of staff with some cases that fall under my specialism. We've always got along well and I've really enjoyed working with her. I've been here a number of years, she is 6 months in. One of her cases is a non binary person, and she emails me occasionally for advice as it is a long and complex case (has been ongoing for months now since before she joined the team). I usually get it right but have occasionally written 'she' by accident. They have a female name and I am not intentionally using 'she', it just naturally happens. Instead of speaking to me about it, she has made a complaint to my line manager, who has had a word. Line manager was fine about it and it wasn't a telling off. More of a passing on a message.
Now feels very awkward and think my line managers advice to her was that she should speak to me in the first instance. I really want to raise with my colleague that she should have spoken to me instead of running straight to my line manager. Not sure how to handle this as I've never had a complaint from a member of staff and it has ruffled my feathers.
Would you just leave it be?