She wants to "talk"...advice needed

I've been around this sub some time so some of my posts may seem familiar. My ex and I broke up just over 2 months ago, and it has been a rollercoaster of craziness.

• Started with 2 weeks NC

• NC was broken, we met to "talk" and ended up having sex 2-3 times a week for the next 3 weeks or so. She avoided talking about us at all other than the "I miss you so much" that she'd say periodically.

• Tried to go NC again, but it was shaky. Met for a coffee 2 weeks ago, which was the last time I saw her, outlined in this thread:

https://www.reddit.com/r/ExNoContact/comments/801dmi/we_had_planned_to_break_nc_tomorrow_and_go_for_a/

• Didn't get anything of value so left still sad. I've been holding to NC as best as I can since then, but she has been leaving heavy signals.

• Last week she texted me "I love you.", outline in this thread:

https://www.reddit.com/r/ExNoContact/comments/82c6lo/breadcrumbs_big_enough_to_be_a_sandwich/

• When I didn't respond, she followed up with a picture of us and said "I miss these memories" or something like that. I responded with the same thing I told her at the coffee: "I need some time to get over us, I asked you to contact me if you want to talk about us or if it is an emergency, otherwise please give me my space for now"

So now we're at today.

I hadn't heard from her since last week, and am actually ok with it, even though I'm really not. She sent me a text yesterday letting me know that the last few things I could drop off Wednesday morning on the porch as she was leaving for her hometown for a week and would get them when she woke up (I work at 4am, so I'd drop them off at like 3:30). I replied with a simple "ok, np" and figured that was the end of it.

Well, she replied shortly later that "I'll be gone for a week, but when I'm back I'd like to talk."

My question is not about what to expect, but how to prepare myself. Its been 2 months and I want to move on, so I'd like this to be the LAST time we talk about anything us related. I'm willing to walk away forever, but I'm also willing to hear her out if she is serious about us. How should I prepare?

The way I see it is one of 3 scenarios are possible:

1. I walk away for the last time - She doesn't want to actually talk about us and it's another talk about nothing I care about. This would be the end of it for me.

2. We agree to carry forward where we left off after we talk about our issues and see if we can save our relationships. I think this is the best scenario of the 3.

3. We start dating fresh, knowing that we have issues to work on, but for now keep it light and fun and rebuild from the ground up, approaching and talking about our challenges once again as they arise. I don't like this one because it doesn't address the problems that led to the break up, but might be a nice way to restart things.

TL:DR - Ex wants to "talk".