Friend of girlfriend messaged late at night, she said she hadn't spoken to him in a year. Found things that say otherwise, advice?

Anonymous
Wondering people's takes and if I should bring it up, my girlfriend had a friend in the past where his current partner wasn't happy with their friendship as she said they were too close.

Long story short, this guy randomly pops up and and messages my girlfriend after a year, and at like 1am at night. I was like bit strange but OK... she then told me he was an old friend and about that. She said she didn't know what he was up to, if he was transitioning or not, or anything about him.

Its been a few weeks and his insta popped up as she follows him. It's public now and she seems to have liked and commented on his pictures for the past year... he even has a septum piercing and comments like "🍆😈💦" on the pic she liked...

Should I confront her or not? I sort of feel lied to as she said she didn't know what the guy had been up to and hadn't any contact for a year and the like on a picture with that comment is bothering me, advice?
Friend of girlfriend messaged late at night, she said she hadn't spoken to him in a year. Found things that say otherwise, advice?
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