<human>: Can you give me a shortened version of the text?

Soo where to begin.. I went out with this girl (A) about 3 years ago. It was a relationship in which I was unbearable at times. I had a lot of issues and I was immature. Eventually she got sick of it and left me and I was left in pieces. It took me a long time to recover but I then met a girl(B) who I went out with for about 2 years. She was amazing and changed me as a person, although I feel I cleaned up my attitude between the two relationships.

Anyway me and B broke up a while back. I just felt the spark was gone. Turned out that me and A, who had been avoiding me for 3 years because I was an ass got chatting again. I get on amazingly with her and I take responsibility for messing it up the first time.
There is a lot of finicky details I can add in but I just need advice. I mean chatting as in every single day. Anyway we have both discussed it and agreed it may go somewhere but it may not. This girl has always been in my head and the fact that we talk amplifies it. Dont get me wrong Im single and I will get with other women if I get the opportunity and I want to. But I just worry Ill get too involved and get hurt again. She is very busy and Im not atm which makes it difficult for me to envisage us developing the relationship. I dont even know if I want it to develop because every other day I feel mixed signals. Anyway thats it. Im probably being over dramatic and I should ride the wave and see where it goes?
<bot>: An ex back in my life, I fucked it up first time, back talking, Dont know what to do .