<human>: My ex and I were together for almost a year. During this time, I moved into his mother's house (mom had to move away for a job, ex lived there to keep up things). I ended the relationship almost a year ago because he wasn't taking responsibility for himself (not  picking up after himself, never cleaned) or getting anywhere in life (same job for the past 4 years, no aspirations to move further up); I tried to save the relationship but nothing worked. Eventually I broke up with him because I didn't think he'd ever improve.

Now he's gotten his life together; he's moved up to a salary position, takes care of himself, and wants to try things again. There has been a year between us breaking up and now. A month or so ago, I started casually seeing someone new with lots of potential (has goals, strives to obtain them). Casually as in we hangout once every week or 2 weeks. By no means are we "dating", but I'm pretty sure he's developed feelings for me. I'm not sure if I should try things again with my ex or if I should just continue to peruse this new person. Has anyone came back to a relationship after so much time had passed and it worked out in the end?

Can you give me a shortened version of the text?
<bot>: Ex got his shit together & wants to try again, but someone new has come into my life during the year we were apart.