I've been in my role for over 2 years and I've been unhappy for the past 6-9 months. This is partly due to someone else joining the team a year ago, and feeling like they've been trying to micromanage me even though I don't report to them. I have always been open with my LM so when I spoke to them about this on a few occasions, the last couple of times I was made out to be the problem, and my LM had this narrative that I didn't or couldn't work with this person even though I had NEVER said that. My LM handpicked this person to join the team as it was a brand new role, i.e. they didn't have an interview just an informal chat. Since this person joined the team, I feel like my working relationship with my line manager has changed (it was only me and them in the immediate team), and because the other person works more closely with my LM as they have a higher graded role, they have become very close and I feel like I have been pushed to the side. My work has never been questioned, but more recently I feel like my LM has been micromanaging me, especially when the other person questions when I do something. During the past 6-9 months, I've been going back and forth on whether I should look for something else, but the last month or two I've been dead set on leaving.
I have a 1:1 with my line manager coming up. It's been noticeable to my line manager and the other person that I'm unhappy. I've been actively looking for another job, but I don't want to tell my line manager although she probably suspects. I don't know how honest to be in this 1:1 but I'm not good at hiding how I feel!