My girlfriend never posts me on social media?

My girlfriend of 9 months will never post pictures of me on her social media. Her facebook still says single and last week when she was doing a TikTok she had me sit behind the camera. She says its because she doesn't want her "crazy" babydaddy to find out but I dont know, I feel kind of bad she will never post me. Is this a red flag?

My girlfriend never posts me on social media?
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