Who misses their EX and wants to talk about it?

I felt so coward when my test started, I only finished the section one and left in blank section 2, 3, 4, of the full even, I delivered the test and left the place immediately, I didn't get back to home, I went to drink some beers to calm down and then I felt guilty, coward, disappointed, and many other bad things, I still carry the guilt, I can't get over it.