Happiness consumes itself like a flame. It cannot burn for ever, it must go out, and the presentiment of its end destroys it at its very peak.

August Strindberg
Profession: Playwright
Nationality: Swedish

Some suggestions for you :
I love her and she loves me and we hate each other with a wild hatred born of love.
People who keep dogs are cowards who haven't got the guts to bite people themselves.
I loathe people who keep dogs. They are cowards who havent got the guts to bite people themselves.
I hated her now with a hatred more fatal than indifference because it was the other side of love.