I wish I can go back

If there is one specific time that I could go back to and change no consequences, the time that I shrugged off one of my best friends to be with someone that only used me, she even warned me about the person. I thought she was jealous.. I was right, but so was she. I wish I can go back, it's gonna be hard to move forward, I have nothing against kids. I'd just prefer my first child to be my own, y'know? But I regret not listening to anyone, the worst part is she's even more beautiful and such an amazing person after everything she's been through, she's the one person I could see myself with. But I can't. At least not yet