Is my boyfriend cheating on me?

I've been with my boyfriend since 2018. We were friends in college and always had a massive crush on each other but we didn't really act on it till we left. He messaged me inviting me to watch him play with his band.

After that we pretty much started dating. We bought a tiny flat together in the city and I pretty much supported him whilst I worked full-time and he focused on his music career and worked part time jobs.

My boyfriend is a very beautiful man who comes from a very traditional Italian family but they moved over to the UK for a better life when he was 12. Sometimes him and his family say things I don't understand or talk in there own language.

Because of my boyfriend being extremely beautiful he gets a lot of female attention which is good for his career but doesn't mean I always enjoy it.

Later he's been acting really different. He used to very clean cut now he's getting all these tattoos and growing his hair put and wearing makeup. He says its all for stage presents and his manger wants him to look the way he sounds so he can find a target audience better.

He always out partying now as his career is getting better and dressing strange. He's always talking about sex now and acting really flirty with his fans which we've had a lot of arguments about.

And now another girl has came into the picture. He's been working with her, making music. She's very pretty and glamorous and he's always texting her, talking to me about how funny and amazing she is etc.

I lost it last night at him. I made him dinner and he didn't come home till 2 in the morning. I threw his dinner down him and told him I know something is going on and that he's acting like a different person and as if I've been all forgotten about now he thinks he's Mr big shot.

I'm happy for him becoming successful but it seems with the more success the less I'm in the picture

Is my boyfriend cheating on me?
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