The more information that gets posted, the worse it sounds. Hopefully you do move on to find a better fit for you, not one still hung up on her ex...

Fool me once: shame on you.
Fool me twice: shame on me.
Fool me thrice: I'm incorrigible.

Could be me, but I fail to see how what you say relates to what you quote?
There's nothing weird about someone having 3 exes unless they're 20 maybe.
At a certain age having 2-5 exes is pretty common.
And it also has no relevance to the OP not learning.

I thought it was obvious, but apparently it wasn't. Having too many exes seems, to me, to indicate that the person 1) has difficulties making up their mind or 2) is not thinking things through before entering into a relationship or 3) is rushing into a relationship before both parties are ready. I'm 82 and have only two exes (not counting one-night stands) and the last one was my wife. We were married for 46 years, until she died. Had I had many relationships, it would clearly demonstrate that I had an incorrigible tendency (and an inability to learn from my mistakes) to get into doomed relationships. BTW, having many exes tells me that there's a problem with at least one of the protagonists.

In a way exs equal body count, and I think some women downplay that number, probably true for men to ...
So if she said 3 exs how much could I add to that ? Double or triple ha ha.
She was just the second woman I was about to date ....so yeah! I do believe I still have a lot to learn.
But you are absolutely right the more the exs the more likely there is a problem with one of the parties involved in the relationship. So I was definetely not that one....

YOU definely a good man and you know how take care of a man.

So you had 2, and you seem to suggest a lot of one night stands.
That to me is a huge red flag. I wouldn't want a man who sticks his thing into anything and anyone. I'm not interested in a man-wh*re.
To me that says he doesn't have any norms & values, isn't serious about finding love.

As for what you say... that is the old model of relating. For someone your age that would make sense as in the past those used to be the norms & values.
Things have changed. What people want and need has changed.

I personally think a large number of exes can mean something is off. But 3 is nothing unusual.
I think most everyone these days will have 3 exes.
And let's face it: that's only one more than you have!

I think that’s the best , because why would you still be keeping someone who knows the graveyard 🪦 the past you’re trying to bury…

If she /he is still in contact with the ex....he/she will bring the toxicity to the current relationship!!!