My friend kept tabs on me to then inform my ex boyfriend.

I find myself in a weird situation and would love an outsider’s opinion on this.

I was with my ex-bf for about 2-2.5 years and we broke up amicably. He then moved to the US for work and we would text let’s say once every 4-6 months just to say happy birthday or for very quick catch ups. There’s nothing going on between us romantically and the last thing any of us wants is to get back together. Nothing terrible broke us up, we simply weren’t compatible.

While we were together, I had this girl best friend (or at least I thought we were best friends) who was a bit of a weirdo but I didn’t think much of it at the time. She didn’t really like my ex and made no secret of it, claiming that he “took me away from her” although this was not true one bit.

A few years after my ex moved to the US, she also moved to the US for work and both of them live in the same city. My ex didn’t follow me on Instagram but she did. During that period I was dating someone else. That didn’t work out either but I did post him on my ig one time (only one time).

Turns out my ex had met with her for lunch, and without even being asked (or so he says) she proceeded to tell him I was seeing someone else, gave him his name, details etc. Then she informed him about my activities, where I was on holidays etc. This was no casual “oh btw our mutual friend is doing ….” but much more detailed, more like a month by month breakdown of my activities. When my ex visited my city he invited me out for a casual lunch and told me what she had told him. Basically she was keeping tabs on me and forwarding all/any info to my ex. I asked her about it and she just unfollowed me. Haven’t been in touch with her ever since.

She’s married with a one year old kid btw. And my ex told me while they were having lunch, her husband was calling every 10-15 mins. Is this normal behaviour? When my ex told me about it I didn’t know what to say. On one hand it’s not like I am keeping my life a secret but on the other hand I find it bizarre.

How should I deal with this?