Is boyfriend embarrassed of me?

I am 25. And he is a few years older than me. Have been dating him for a year and a half. I don't care about social media, but he has never made a relationship status of us. He has never posted me. And he has posted his exes in the past... one girl he was with for a long time and had a child with her, so I understand. I'm sure they were much closer then than me and him are since we have no kids together. But he had a girlfriend after his child's mother and he posted her too. He claims that he just posted her to make his child's mother mad... but I don't know. When I ask him why he doesn't post about me or at least make a relationship status then he says that he's older now and doesn't want to post all about me in case I break up with him or the relationship fails... he says he's not embarrassed of me and thinks im beautiful but it's hard to believe since he posted his exes. It really makes me feel like he at least thought they were prettier and that I might be a downgrade so he's not nearly as proud to show me off.. and in the year that he's been with me, I have only met his mom once and his brother a couple times. He doesn't want me to hang out with him and his friends, because he claims it's because he doesn't want his friends to take me away from him... but again, he hung out with his other girlfriends with his friends. I'm feeling very self conscious. Does it sound like he's embarrassed of me and thought his exes were prettier or better, therefore he was more proud to show them off?

Is boyfriend embarrassed of me?
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