Yes It's tough I went through something similar but it was only my second relationship type thing. We cant take offense and also have to realise we might not be campatable with them and they aren't the one if they dont love us; but lets face it things change and even though this seems like forever you will find more people to love. They might find someone else too and maybe one day you two will rekindle your love. It is so hard but you will heal in time!