Our emotional reactions to our own behaviour are of limited ethical significance.
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C.S. Lewis, Letters to Malcolm: Chiefly on Prayer (San Diego: Harcourt Brace Jovanovich, 1964), 99.

Anger–no peevish fit of temper, but just, generous, scalding indignation–passes (not necessarily at once) into embracing, exultant, re-welcoming love. That is how friends and lovers are truly reconciled. Hot wrath, hot love. Such anger is the fluid that love bleeds when you cut it.
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C.S. Lewis, Letters to Malcolm: Chiefly on Prayer (San Diego: Harcourt Brace [...]

…resentment is pleasant only as a relief from, or alternative to, humiliation.
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C.S. Lewis, Letters to Malcolm: Chiefly on Prayer (San Diego: Harcourt Brace Jovanovich, 1964), 95.

I do not think that the life of Heaven bears any analogy to play or dance in respect of frivolity. I do think that while we are in this “valley of tears,” cursed with labour hemmed round with necessities, tripped up with frustrations, doomed to perpetual plannings, puzzlings, and anxieties, certain qualities that must belong [...]

Don’t imagine I am forgetting that the simplest act of mere obedience is worship of a far more important sort than what I’ve been describing (to obey is better than sacrifice). Or that God, besides being the Great Creator, is the Tragic Redeemer. Perhaps the Tragic Creator too. For I am not sure that the [...]

Yet you were not–or so it seemed to me–telling me that “Nature,” or “the beauties of Nature,” manifest the glory. No such abstraction as “Nature” comes into it. I was learning the far more secret doctrine that pleasures are shafts of the glory as it strikes our sensibility. As it impinges on our will or [...]

The soul that has once been waked, or stung, or uplifted by the desire of God, will inevitably (I think) awake to the fear of losing Him.
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Letters to Malcolm: Chiefly on Prayer (San Diego: Harcourt Brace Jovanovich, 1964), 76.