I'm afraid you are mistaken my master. The dialogue correctly recorded is this:
Yoda: Until the time is right, disappear we will. Master Kenobi, wait a moment. In your solitude on Tatooine, training, I have for you.
Obi-Wan: Training?
Yoda: An old friend has learned the path to immortality. One who has returned from the netherworld of the Force... Your old master.
Obi-Wan: Qui-Gon?!
Yoda: How to commune with him, I will teach you.
This dialogue proves the following points:
-Qui-Gon was in the netherworld of the Force for 13 1/2 years.
-Yoda taught Obi-Wan how to commune with Force Spirits.
-Qui-Gon had no form of communication with Obi-Wan prior to the instruction he received from Yoda.
-Obi-Wan was not taught how to communicate with Force Spirits to be taught by Qui-Gon rather so he would have someone to commune with in his 19 years of exile.
Obi-Wan learned much from Qui-Gon in his years of apprenticeship but after Qui-Gon's death, Obi-Wan continued to learn even more. Some things he learned were not things his old master could teach him. Also note that Obi-Wan became a Jedi Master and was given a seat on the Jedi Council, Qui-Gon never obtained either of these.
Thus we can conclude Obi-Wan did not depend on Qui-Gon, but Obi-Wan did appreciate his friendship.