Stolen personality

Have you ever felt like your personality has been stolen? Or just someone always copy’s you? I could be wrong or overthinking my situation, but however I recently started dating my boyfriend back in September but I’ve noticed he tries to be like me/copy me or just does it so I can think he’s cool and that we have some kind of similarities? I don’t know I’ve been finding it very weird and it just feels like he’s stealing my personality.

For example I took a vape to a festival with me. I sometimes vape not all the time. When the time is good/right I do it. My boyfriend didn’t vape when I met him and he told me he doesn’t but for some reason he now vapes since i took mine to the festival? He now suddenly just owns one all the time, but isn’t really educated on them and told now he see why people get different color vapes so they don’t misplace them. I’m like uh no that’s not why at all.

I love drinking wine, I normally drink a Cabernet and I introduced him into the wine I drink. Now he drinks wine but it doesn’t even seem like he’s drinking it because he genuinely likes it. It honestly seems like this front for me to be like oh my god my boyfriend loves wine.

I normally say “nice” when I’m not really paying attention or when I don’t have much of a response to say back in person to anyone and now he says that all the time and says oh he catches himself saying a lot of the phrases I do.

I also tweeted a quote from a song that was stuck in my head and then he got hyped about it and at 5 in the morning texted me a quote of a song that had literally no meaning just one of those ratchet songs, and I’m like thinking it’s not a thing I just wanted to tweet a lyric that was stuck in my head.

It’s just the little things that I’ve noticed like he’s trying to be like me and not himself. Am I over looking this or being too dramatic? Because I’ve been getting annoyed by it.