Should I confront it or leave it alone? ?

My current boyfriend's ex fling followed him on instagram and hours later he requested to follow her back. They had a short relationship that lasted 3 months and ended last year February 2024... They hooked up lastly in June 2024. The last time they spoked was August of last year which was lots of paragraphs back and forth explaining feeling.

They consisted of him asking her why she blocked him and how he still had feelings for her but didn't want a relationship just a friends with benefits. After that She ended up blocking him for 6 months until now.

This was all before me.

Should I be concerned he also watched all her stories? Why did he follow her back if he doesn't want her?

Should I confront it or leave it alone? ?
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