Welcome to HealingWell and the Depression Forum.
I agree with Karen and she has given you great advice. Situational Depression is the form of depression that rears its head in direct response to external circumstances. Any number of traumas or trying events can trigger a bout of situational depression. The death of a loved one, or the loss of a job, for instance, may produce intense and temporarily debilitating depressive symptoms. In your case your loss of a relationship.
The key to differentiating situation depression from its clinical counterpart is the temporary nature of the symptomology and the fact that it can often be traced back to a specific cause.
Remember you are special person and you deserve the best that life has to offer so do not settle for any less.
I wish you peace and happiness but most of all I wish you love.