Here's the story: I was best friends with a girl all through secondary school and up to the start of uni. Around the start of uni she developed a lot of problems - depression, a close friend died, family problems etc and she leaned on me a lot for support. I started going out with my now fiance in first year and she took an instant dislike to him, to the point of telling me she hated him (despite never having really talked to him) and never wanted to see him again. I tried to talk to her about it a few times but she wouldn't be open about how she felt and in the end she just refused to talk about it at all. Things really deteriorated between us. My fiance and I got engaged on my birthday nearly two years ago and I invited her to the party (there was an uneasy truce going on at the time) but she said she was busy and would get in contact with me later. I was very hurt at the time because she was supposed to be my best friend and at the very least she could have popped along to say happy birthday. At that time as well I was miffed because it was always me getting in contact with her rather than the other way around. So, I deleted her number from my phone so that she would have to contact me. Fast forward to today (nearly two years later). I haven't heard a word from her until she bumped into my fiance today and asked him about me (bear in mind she wouldn't say a word to him before). She asked if I had the same number and he said yes, so she just texted me with a fairly ordinary "hope you're well, why don't we meet for coffee" message, claiming she tried to contact me a while back with no success.
I don't know what to do. I have a lot of anger at her still for how things ended up between us, but we were friends for nearly ten years and it's hard to forget that. She wasn't a great friend to me, looking back on it, she never gave me much support while I was always there for her, and I really don't want to get sucked back into that sort of set up again. I partly think I should meet her and talk things over but I doubt it'll do any good for anyone. Anyone got any advice?