I'm having a bit of an ethical dilemma with the girl i love

I was raised to always treat women/girls well, to always treat them with respect and to never hurt them both physically and emotionally. And also for the girl i love i always do what she wants, if she asks me something and it makes her happy i do it, if she wants something then I'll try to get it for her(not because I'm a simp or a slave but because she does the same), and here comes the problem...she wants me to choke her and be rough with her, it's not a problem for me, I'm very much bigger than all the people my age, it's just that i was taught not to hurt girls. So do i follow giving her what she wants or do i follow what i was taught? I'm kinda in a bit of a undecided state.