My ex is saying he’s over me but is doing everything to prove otherwise?

My ex has not changed his habits at all with me after we broke up after a huge fight 3 weeks ago. We were together for 3 years. The only things that have changed are that we don’t follow each other anymore on Instagram and we don’t talk on the phone anymore.

Other than that, he’s asking if I’m seeing anyone constantly, trying to get too many details on my life, viewing every single one of my Instagram stories , and staring at me or trying to get my attention constantly. ( we work together )

Then he will turn around and randomly say he’s so much happier single, but every one of his actions prove to be the opposite. He seems to go through major mood swings where one second he’s jealous, then the next he shows he doesn’t care.

This upsets me because I wouldn’t mind getting a long and being friends.
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And he’s also viewing every single story I post despite not following each other. I do not view any of his.
My ex is saying he’s over me but is doing everything to prove otherwise?
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