One Way to End an Affair

[Brownlie]

A candle’s dying
makes the candle
live longer, as nothing  -- This is  cool. I could see how this links to affairs. Possibly if you keep going with the adultery (the fiery candle?) than it can be detrimental.
is not by its own ceasing
still alive— -- I'm a bit confused at this point, so maybe clarify to flush things out. I guess with rational type arguments though sometimes things can get sort of confusing.

not time, nor light,
nor my love for you.

Everything is red
at some point in its existence:
ecstasy consumed,
some a bit slower— 

like paraphrasing -- So who are you paraphrasing? I'm not sure I have the wit to work through this. 
my love for you.

All things are like candles,
even heavy stones—
i guess
even my love for you. -- I think the actual word love can be OK. I guess the poem just has to be an original love poem.

If other people get what you mean, and the formation of the poem enhances it I don't think clarity is an issue. For me, I thought the poem compared an affair to a candle. Maybe clarifying some things will help you edit?