Another suggestions is you look at a local photography club... go out there, make new friends, and share the joy of taking photographs... I had separations before, and had the loneliness, depression and loss of direction... and as much as you would like to document the "pain" you are going through now, it is best to look for different things, get yourself out there, and meet new people... which can jump start your life again...
Good luck with it...
And yes, I dont have a lot of flowers in the house, but I do have 3 cats I always photograph if I am out of ideas...