Good or bad.
Well, you are trying to give honest answers, so that is good. Your BS is quiet because she is processing this, trying to figure out what it means.
My take on this? On the one hand, it shows that this was either a core belief that you absorbed from your environment (being around other guys who acted like being a “player” was somehow admirable) or that it was a poor coping mechanism for other problems/fears, which you have used for a long time. If you can recognize that, you can change it. At least your BS will see it had nothing to do with her –you had already developed some system of “not thinking about the outcome” and not thinking about your BS. That is pretty common for waywards, so you are certainly not alone.
On the other hand, hearing that the WS has always been wayward, a “serial cheater,” is disheartening. It makes the BS wonder if change is really possible.
I did think that way when I first came on this website, but as I read more stories I realized most WS had wayward thinking in one way or the other, even if they had not committed infidelity before. The messed-up thought processes were there. The number of times or the length of the affair may matter to your BS, but they do NOT determine whether or not you are going to be able to make healthy changes and learn a new way. THAT is up to you and only you.
If you are committed to that, let your BS know. Let her know you are realize your whole world view was incompatible with truly loving her the way she deserved, and that you are committed to growing up, beginning to understand yourself, and becoming the man you want to be.