Sorry it's kinda long, but I could use some advice...

So, one of the best friends I have ever had... We were completely inseparable and totally understood eachother and could really open up to eachother. We loved eachother's weird humor and we had SOOO many good times. But we had some confusion and miscommunication and then our friendship ended in a really nasty, painful way. It was both of our fault, but probably more hers (and she would agree on that I think). She said some horrrible things to me- typed out a 7 page letter about all of my faults. It hurt a lot. Because I was hurt so much, and because I'm so good at shoving people away, I have never missed her a single day.

Several years later, the death of our mutual friend Jon has kinda brought us together recently. I have been very guarded with her, but she has apologized and said she's grown up a lot since then and realizes how juvenile our falling out was. She said she really misses me, and has never found a better friend since.

Last night, in my panic, I called her. I only have one other friend in this town, and I couldn't find someone. I just needed somebody. She brought me a funny card, a heatable little bag thingy for comfort, and some icecream. And then, I remembered all the wonderful things we used to do for eachother. And I enjoyed her company.

And for the first time ever, I really missed her.

I am a person with a LOT of walls, and I have a hard time trusting the first time around. The second time around, it's incredibly hard. I can't decide what to do with this friend.

If you were me, what would you do?