My boyfriend lies about his ex?

I was surprised about a question my boyfriend friend asked him

So we were having some beer and his friend came up, he introduced me blabla

Later his friend asks him:"are you being a good boy and staying away from your ex?"

He is dating me for 2 years... last time he saw this friend, it was maybe 4-5 month ago.

Why the hell he is asking That question, does it mean he previously was meeting with her? and that friend knows something I dont?

Or its just the way he is talking?

I mean he knows my boyfriend story that his ex put him in jail 4 years ago, lying he beats her. So maybe he is talking in general.

Im a bit overthinking here maybe?

My boyfriend lies about his ex?
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