My girlfriend overshared intimate details about her ex and I can’t stop obsessing over it

Me and my girlfriend met about 2-3 months ago and have now been dating for a month. She is my first, while her first was somebody else.

Very early on when we met, like literally within the first few days, questions about exes came up, which I feel as if is normal. If you’re going to get romantically involved with someone, of course you want to know what happened with their ex and why it ended.

However, the problem was the oversharing.

Very early on she told me very specific and intimate details of what they have done. At first it started off as simple surface stuff, nothing crazy, but the more and more we talked, extremely intimate details about what they did came out (like part by part of how it went down), and unfortunately I thought I could handle it, so when she would overshare I would just go with it and ask more. However, I soon came to the realization that it was self sabotaging.

She told me the only reason she would overshare was so I could too come out about my past, but I feel as the extent that she shared would’ve been better off not said. There is unfortunately no way to go back and change this.

But the problem is, now that I know these details, it comes up in my head constantly and I can vividly visualize it. It is genuinely killing me, it has made me so physically sick at times that i have thrown up, I just cant bare the thought that she did such intimate things with someone before me.

It also really hurts knowing that some of the things she did with her ex are things we will most likely never do, which makes me feel like they’ll always have done more than us.

I want to clarify that she has told me multiple times that she never loved her ex and that her and her ex were primarily just sexual, not much of a romantic aspect to the relationship, which somehow makes me feel worse.

Is it possible to overcome all these feelings especially so early in the relationship, i’ve felt this way for awhile and many of my friends have told me that if im not over it when its already been 2-3 months since we first started talking that i most likely will never be over it but i would really like to overcome it.