How was he shamed from all his afflicters?
Radak: It was due to the evils that they do and plot for me. I flee from them from place to place.
Why did he mention his neighbors?
Radak: I am not disgraced in front of a foreign nation, rather, my Yisrael neighbors - "Tesimenu Cherpah li'Shcheneinu" (44:14)!
Malbim: My afflicters disgrace also my neighbors, that a man full of sins lives next to them.
What is "Pachad li'Myuda'ai"?
Rashi: [My close ones] fear the occurrences that befall me.
Radak: My lovers and family fear for me, lest I fall into Sha'ul's hands.
Malbim: [My close ones] fear to be close to me, due to fear of my afflicters, lest they harm them.
What is the meaning of "Ro'ai ba'Chutz Nadedu Mimeni"?
Radak: [My close ones] who see me flee, they fear and shake from what they see of me.
Malbim: People who see me go away from me, lest I come close to them [and my afflicters will harm them].