I’m too insecure in this “relationship”, should I just end things?

Hi friends! So I’ve been feeling too insecure in this “relationship”, we’re not official but we’ve been dating for a little over a year - we’re only seeing each other. I asked him if we could just go ahead and make it official but he said he’s not ready and is too scared to disappoint me.

His social media is also filled with pics of his ex, he never posted about me and none of his friends know about me. His ex still posts old photos of them and my “bf” called her out on it and blocked her. He asked me to post him on my social media but he never bothered to do the same for me and I’ve made it clear to him that it bothers me but he just brushes it off. He’s also very secretive but expects me to be fully open with him.

The fact that he still won’t make it official and is practically hiding me bothers me a lot but he keeps saying that the whole social media thing is no big deal and that he doesn’t go around announcing to people that he’s dating someone new. I love him a lot and I know that I’m being dramatic but I can’t help to feel anxious and insecure over this whole thing. What should I do?
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I also feel the need to add that my “bf” and his ex used to work together before they broke up, so they still keep in touch from time to time to discuss past projects (and maybe potentially new ones). They’ve also met a couple of times for work after they broke up and we were already dating
I’m too insecure in this “relationship”, should I just end things?
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