I had a relationship with a girl for 2 years. At the beginning was good, but then we began fighting, arguing more and more. So the rest of the relationship was breaking up, getting back together, and so on(the second half of the relationship). So it was very bad, but the last break-up was when she found another guy and she started a new relationship.
And then I was in No Contact with her, and after a few months she came back to me, but only for a few days, and then she got back to the other guy. Then I was again in No Contact for more months. And then I contacted her. She is now texting me (on internet) everytime she has the occasion, but she is saying that I am only like a brother for her. So it's only friend zone, she made it clear that she doesn't want sex, when I started joking around. But she wants to go with me at beach swimming pool.(without telling her bf)
I said that I want too. But now I am not so sure that my answer was the best.

I am sure her relationship is not that good, but she said that we are only in friend zone (no attraction, no feelings).
So my questions are.

1. Should I go out with her(swimming)?
I don't think it will be good being nice and following her everywere and doing everything she wants. But how can I tell her now that I changed my mind?

2. Re-attraction is possible and how? (at least for turning her into a FB)

Why the fuck would you want her back when there is so much other pussy available?
Is it the best you ever had??

So much wasted time and effort!

Is your goal just to fuck her again? That's the only benefit I see here!

This means; "Yes I will fuck you, but that is all! It is your job to take me to the beach, get me drunk, SEXUALLY ESCALATE ME, Make it not MY FAULT, then maybe be your fb"!

You already know how the relationship would end!

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They call me the cat whisperer, cause I know exactly what the pussy needs.