The girl came in, and my boyfriend touched my chest. I broke up with him, but it was very uncomfortable.

There are all kinds of people. I don't agree with the comment that you are "prude" and "pretending to be a lady". Although I am a boy, if I were you, I wouldn't touch my girlfriend casually, because I am very conservative.

So I totally agree with your choice. As long as you think that's right or reassuring, please continue.

I have noticed that opinions here are always extremely divided. If a girl asks if she wants to give herself to her boyfriend, many people will say "if she loves him", but if the result is unfortunate, many people will say "self-inflicted". I think those people either don't know what their position is or don't take the fate of others seriously at all.

So, you can ignore all the opinions here, including mine, and just do what you think is right.

However, because you are a woman, you should understand that, generally speaking, women are always vulnerable in this world. Don't be forced or semi-forced to give up your position because of secular views.