<human>: 2 and a half years ago, me and a girl (we'll call her L) were seeing each other, and we were super close and really connected and happy. It wasn't official, because she was confused about what she wanted in life. Eventually, she broke it off with me to figure it out, and I was completely crushed. It took me a long time to get over it, and I eventually started dating another girl, which turned out to be a not-so-good relationship. I recently ended things with this girl, in a calm and not-harmful way, and me and L started talking again, and I realized that I had never truly gotten over her. Its been about 2 years since we've talked, and she has made a lot of progress in figuring out her life, and we've kind of started seeing each other again. Trouble is, I don't know the extent of what we are, at least in official terms. Exclusivity, attachment, commitment, etc. Like, I don't want to lose her again, even if it means just staying friends with her, but I want it to be more than that eventually. However, we're both not ready for a relationship at the moment. I know for a fact that she cares about me in a similar way that I care about her, so this isn't like a 'you've been friendzoned' thing. 

Bottom line is, I don't want to lose this girl again. I tend to overthink things, and sometimes I think I can be super overbearing and clingy and stupid about things, and I don't want to do that. What do you guys think is appropriate in terms of how I communicate with her, in the best way so that I don't push her away?

Can you summarize the given text in a few sentences?
<bot>: still care a lot about an old flame that i'm seeing again, and would really appreciate advice on how not to fuck it up this time