Late response, but as far as treatment goes, but I found that having someone who I can trust with emotions and who I know won't reject me is very important as a basis for healing. Also as far as therapeutic methods when it comes to AVPD, I've found gradual exposure therapy most helpful, starting off with small things like "Thank you." when someone did something for me and then slowly developing things like saying Hi, How are you?, Did you watch this movie? etc.