I am soooooo sorry , im going through sonething similar so I can relate , It's the worst pain so my heart hurts for you , I haven't seen my friend , close friend in 3 yrs , he also has a gf , and like you it was out of nowhere and hurts like hell. I miss him terribly. I'm struggling because he's like family , I don't understand what happened .Im no t that great with advice but i wanted you to know I care and I hope things get better for you and am around if you need to talk.