That's terrible news.
I know you feel sick about it and I feel sick for you as well.
I wonder if any correlation exists regarding the tick and Coyote engines that that don't show much oil useage over time vs Coyotes that burn a quart of oil every 1500 miles or so since new.
I don't seem to have the tick at this point and my engine has been doing at best 2300 miles per quart of oil since new. I have a total of 13,100 miles currently.
Just thought I would chime in my 2013 5.0 drinks about a quart every 3,000 miles I now have just over 16,000 and "Tick" free.