When she eventually sms's you back, ignore it.
When she calls you after that, be friendly as you were originally but cut her off mid conversation and tell her you will call her back, don't.
Carry on like that for a few weeks then ask her if she would like to meet you for drinks, get there 40 minutes late (or just don't go).
Eventually she will want to shag you out of insecurity. Do it and treat it as a one night stand then block her number.
She is destroyed, you can carry on with your life.
This... Thank you sir.

But I think I'm just going to go on with my life.
Thing is I think I am going through a lack of confidence dip. In university I was somewhat of a Rasputin, then started dating her... fell in love, wires got all mixed up.. and now this shiiiiity feeling...
Its strange actually I have been meeting girls through friends and randomly the last couple of weeks. but it seems as though I have become a bore.. or maybe because my confidence has been taking a couple of stabs to the gut with like a sword.
On the other hand, maybe she is the ONE. It seems you do love her. Which successful relationship has not had its ups and downs? My hubby and I broke up 33 times when we were dating. We have now been married over 20 yrs.
Why did you break up in the first place? Perhaps she contacted you because she misses you but is too proud to admit it?
Anyway, the only thing you can do now is move on and see what happens. Good luck.
We broke up because She lives in JHB and I live in PTA, and we do not see each other enough and I got frustrated.. the distance never bothered me, but her family is also like weird... parents are divorced, and weird environment... We haven't seen each other because of her studies and I started working this year.
We broke up in February because I wanted to see her and she said she wanted to study and rest the weekend, then some photos got posted of her at some party... left her because of the lie. she came back and said "I'm sorry, I'd do anything to get back". I forgave her.. we were together still didn't see each other between March and May. Then it was a horse slowly dying... then I left. and then everything in the initial post started happening.
I really did love this girl. I felt married to her in my heart already, we had deep conversations, planned our future together, dreamed together. But I think she changed in the last two years... Maybe I became to available? ...I don't know...