This Zipper Will Work When Pigs Fly

I bought some fabric off Ebay a while back and loved it so much that I put in for another order right away.  I made a shrug pattern the other day and knew I wanted to use this adorable flying pig fabric and maybe even make some matching panties.  I took some pink jersey knit I had from a long time ago to line the hood and make the cuffs on the arm.  But when I went to put the zipper on I encountered a problem.  One side of the shrug would stretch and not match up.  I redid the zipper 3 times and it only ended up making it worse.  I may try again with another cut of fabric and pray once again to the sewing gods, that seemed to work last time. ;)   The mini shrug itself didn't turn out too bad as a whole.  As long as you can't see the bottom of the zipper where it doesn't match perfectly.  I'm keeping it for myself since I don't mind the mistake and using it for a set for my modeling along with the matching sexy panties I made.  Here are a couple of pictures of me in the shrug hoodie.  I love it sooo much!  WAAHH!  Why won't it just effing work?