I can certainly empathise ...
How about this then .... earlier this year I got 'outsted' out of my band that I'd been in for 10 years. Me & guitar player did band's 1st ever gig together but different singers / drummers have come & gone. All the music was basically co-written between the two of us though some tracks were more his & others more mine (maybe even 90% my idea / arrangement). Some tracks even have 3 different lyrics for 3 different singers but music didn't changed much ,,, the band (not signed) is still going & selling cds but I don't get anything .... not even a mention on FB / twitter that 'I quit due to personal reasons' or some crap .. almost like in Back to the Future .. 'I've been erased from existence' lol ..... Haven't heard from them since march this year .. new bass player was there 4 days after my last rehearsal .. I wont bore you with all the details of perhaps why all this happened but you would be a bit shocked .....
but here's the punch line ...
this guitar player I starting gigging / writing with 10 years ago .. well guess what ...he's my brother !