Yes, Yes, Jack's motivation, ah what would life be with out dyslexia...
I think that Jack took that shirt because Ennis had just punched him and he thought "that's it" like it was all over, he wanted to keep something of his, hid it inside his own shirt, in his own closet, and at the end of the winter of '63-'64, he left them hanging there and headed out for Signal again, hoping Ennis Del Mar had 'been around".
Last night I came across a cassette tape scrawled on it "Pink Industry" I remember the guy, a college kid, that left it in my apartment in 1986. I gave it a kiss and put it back on the shelf.