How to act Love theme?

Good evening everyone Good question people who are still hanging around here. So the text will probably be longer.

Sooo, let's start with the fact that I met a girl 1-2 months ago (We knew each other before, only now with a company, etc.) We both like each other and sometimes I'm with her and she with me. We have so much in common that I have no one in common, which is almost creepy. She was with me tonight and we watched Netflix, but the problem is why I stayed at least on my side is her boyfriend. I know him personally and he is also very nice, but she says that he is jealous and somehow stalks her with constant calls etc.

She also says that they argue more and more often and sometimes about unnecessary things. She also says they don't have as much in common as we do. When I wrote to my boyfriend for advice, she tried to steal my cell phone all the time and put it in her bra so I couldn't get to it. I got there though and she didn't think it was that bad. Sometimes she was half up to me to take my cell phone away and we laughed a lot. Do I only interpret something unnecessarily here or could there be something? (find her nt and cute, and she has a great character, but here is still her boyfriend who is also very nice. Doesn't want to mess up the relationship with him.)

Should I rather try something more serious with her, or friendzoned me?

I thank you in advance

Wow, very complicated. On the one hand, she has a boyfriend and I wouldn't want to interfere personally. On the other hand, it looks like she shows interest. Bra thing, I don't think girls would be touched if they liked that person (on an emotional level). But, I'm not sure about that either. It can be both friendship and interest in a relationship. I'm sorry I couldn't help you so well.

But anyway, good luck.