<human>: Hi!

Not sure if this is the right subreddit for this, but I'd just like some help figuring out what just happened.

My ex (we've been broken up for three weeks now) knocked on my door last night.  Apparently he's been having a really hard time and feeling incredibly guilty for the amount of pain he caused by breaking up with me (we were just too different, and I have finally come to terms with that), but he said still stands by his decision.  I informed him that my life is better without him (in a more delicate way), and he said that lessened his immense guilt.

We've been in no-contact mode for the entire time until now.  He said that he was feeling really depressed and this "meeting," which I interpreted as the first step out of the no-contact-zone, was a huge source of anxiety for him.  He also wanted me to know that he wanted me to be the one to initiate a friendship with him when I felt I was ready, if I ever was.  

Then he left.  

I'm not completely over him, and I don't want to fall backwards in my progress.  Just feeling odd because it seemed like he still cared about me, and that's making it difficult to move on.  And it sucks to hear that the guy I used to love is having a hard time and I can't help him.  

This may be the wrong question to ask, but how should I interpret this event so I don't ruin all of the progress I've made with getting over him?

Condense the text into a few key points
<bot>: Ex of three weeks tells me he feels bad for hurting me and wants me to initiate a friendship if I want one.  Was almost over him until now, and I don't want to fall backwards...