And Angela cutting her hair after Jimmy had told her how much she liked it was just mean.
I think I missed something. How much she liked what, cutting her hair? Why would it be mean?
Ooops that was a typo on my part..

one little letter.. it should have read "how much he liked it".
Remember in their heart to heart he was telling her about how when he was overseas he thought about her long hair. While he was telling her all this he was stroking her hair.
Then she goes and chops it off. Seems like a bit of a rejection.