let things cool down for a few days then ask her to meet up and chat, after a few days of not seeing you and after having time to think she may want to get back together also that spark that made you get together may return, i know how you are feeling i split up with my missus of 8 years but three days later once things cooled down we talked and sorted loads out and got back together, i hope the same can happen to you, i know it feels like you heart has been ripped out but keep you chin up matey, some goos will come of this