Break Up & Divorce

Why did my ex check up on me, but didn’t make any initiative to come back?

My ex broke up with me over our first argument. He never really talked to me about it, he just thought the worst and left. The next day he was back on a dating site and I asked him 4 days later why was it so easy to walk away. He told me he thought everything moved too fast and wasn’t sure what he wanted. He left me in a really hurtful way. I cried and questioned why did he make me believe he wanted to be with me then just took it all away, he told me he couldn’t have feelings like that for someone in a few months, my heart was broken. He blocked my number. I was so devastated.
I went no contact and and after 45 days he texted me “heyy”.
I ignored it but after two weeks I asked him what did he want. He told me he just wanted to check on me. I told him I appreciate it but I found that unnecessary, and that I thought he’d have something more to say. He later came out and apologized for what he did and how he broke up with me. I apologized too for how I handled it with the crying and calling. He said “no hard feelings”. He said that he just wanted to make peace with me. I thought maybe he’d be reaching out for another chance but he really just didn’t seem to want that. I know you may wonder, why do I care to have a second chance with this man. I am just thinking for myself, why did this man do so much to make me feel like he was into me then over night he didn’t want anything to do with me anymore.
I told him, “thank you for the apology. Good bye!”. He sent me a gif saying “adios”, And that was the last of it.
I am trying to raise my self esteem and love myself more, bc I feel very alone and it seems to become harder for me to have friends and partners of quality.

Why did my ex check up on me, but didn’t make any initiative to come back?
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