I got scope bit once when I first started shooting big stuff. It was because I was playing around with different shooting positions and got down in an almost prone position. I believe (could be mistaken) there is a range to eye relief. On that particular gun I was shooing, the inside of the eye relief range overlapped with the outside of the scope bucking range (which is also affected by how you are holding the gun).
So I would ask you what happened when you got bit? It probably wasn't the only time you fired the gun right? You may need to move the scope, as others have suggested, but you might also analyze how it happened and avoid that situation in the future. As for curing gun shyness, time and experience will do it. I find that not shooting my gun for a month, I almost completely forget how it feels (and sometimes hurts). I believe that time away is important for me personally, to not develop too much flinch.
Don't be embarrassed. I think it happens to many people. Especially if you are new to shooting or shooting other people's (unfamiliar) guns.
