<human>: Can you provide a brief overview of the text?

So I know this girl for about 2 months now and we went on several great dates. We hit it off great and I was even at hers already and we had sex.

Right from the get go I made it clear to her, that I could get jealous about the Ex's she is still in contact with. She told me that it was no problem and she found it kinda "cute".
I made sure that she understood that this would mean that she had to cut contact with them eventually and she said "Yes, that's no problem." Fine then. 

About a week ago she messaged me and told me that she did something horrible. I was there for her and made sure that, whatever it is, I would stay with her. 
Now she finally confessed to me yesterday that she sent pictures of herself in underwear to her ex after he pressured her. 

*(Note: She never sent any nude/half-nude pictures to me)*

So I said, that it was not bad as she didn't kiss him or whatever and the only thing I asked for was that she cut contact with him.
She said "No, it's only a friend. And that's all he'll ever be.
You're getting jealous!".

Well, I answered that I obviously told her that already and that shouldn't surprise her now. 
She then said that she knew, but I was her heart and she only wants to be with me. 

But I am questioning myself right now, if this is worth it. 
Guys, what would you about this situation? Am I in the right to ask her to cut contact with her ex?
<bot>: Girlfriend of 2 months sent her Ex questionable photos of herself and I am asking myself if I am overreacting if I ask her to cut contact with said Ex.