Part of the healing process is sharing with other people who care.
There is a preconception that people should keep their suffering to themselves. Sad or unhappy conversations should not take place. We can only publically project strength, happiness, and confidence. This is nonsense. Healing requires sharing our pain with others, and in particular with others who are capable of compassion and empathy.
You may encounter people who do not want to hear your story or your sadness. Not everyone can handle what you are going through and not everyone wants to be involved in something difficult. Do not be put off by these people. Seek others out who do care about the story you are telling, who will listen as you vent about a situation you for which you did not ask, who will tell you they love you and embrace you without judgment.
Do not be afraid of sharing your sadness and grief with others; it is good for you. Whether you share with friends or a therapist is your choice; what is important is that you share. To heal, we must be clear about what we are experiencing and aware of our emotions and frustrations. Most of all, we must have love to help mend the wound that our loss opened.