Welcome to the forums and thank you for sharing your story with us here.
We are sorry to hear about your recent break up, it sounds like you really care about her. We understand this must be such a hard situation to manage by yourself, so please know that you never have to go through this alone, and support is always here for you.
If you would like to talk to someone, the Beyond Blue Support Service is available 24/7 by phone on 1300 22 4636 or on Webchat 1pm-12am AEST on our website: www.beyondblue.org.au/getsupport
One of our friendly counsellors will be able to talk through these feelings with you and can offer support, advice and referrals.
It could also be helpful looking into an organisation called Relationships Australia on 1300 364 277 who provide relationship support services for individuals, families and communities.
We hope that you will find some comfort here on the forums. Please feel free to keep reaching out here on your thread whenever you feel up to it.