I broke up with my girlfriend but I'm still confused

Problem/Goal: I broke up with my girlfriend because I'm confused with my feelings.

Context: Me and my ex broke up last June. She's the one who initiated because she's having some existential crisis and wants to focus on herself. However, after that, she still reached out to me plenty of times. We were on and off for 3 months. Last week, she reached out to me again asking if I can give her a second chance, and I think the adrenaline hit me so I eagerly said yes, but these past few days, I can't stop thinking if I made the right choice. I can feel na something is wrong, my love for her is not the same as before and I cant shake the feeling na what if maramdaman nya ulit na gusto nya ko iwan, but a part of me still wants to stay because I love her and medyo kelangan nya kasi ng emotional support since she's going through a lot of stuff. Today, I've decided to end things with her, but I'm still confused and dont know if my decision is right.

Any advice?