Did I go out in the worst way possible?

So to start the story, me and this girl matched on tinder a while while back and randomly I was in her area and texted her and we just sparked conversation. It was very easy to talk with her and we aligned extremely well. We met each others families and her’s really liked me. Throughout these months talking a random person would leave flowers at her door which sorta confused me but I was so into her at the time I wasn’t even thinking about it. I spend about an entire weekend with her and ask her to be my gf and she ends up saying yes. The day I leave her house after the weekend, she texts me as soon as i left that she thinks we need more time before we start dating and I said sure, I don’t feel the need to rush something because I’ll still feel like she is always there for me and likewise for her. I tell her how appreciative I am for her and a big long paragraph just saying how thankful i am for her and it gets responded with a message saying that she actually isn’t over her ex and how she is so sorry. After learning that, her parents actually didn’t like this ex so much that they said choose me and stay in the house and choose the ex and get kicked out. She chose her ex. Me or her mom would bring her to work cause she had no car so she had to quit her job as well. No car, no family, no place to stay, she went through all that just to choose her ex over me. I still care for her and it hurts that I have to watch everything crash down on her and I can’t help but maybe in the future I can try and reconnect with her, I really did a lot for her and it made me happy that I could treat her right and take her away from abusive and messy past relationships.