ΔE 38.6, loose: different enough that you should pick on purpose. Love Affair is a little lighter, more saturated, warmer than Doomfire Magenta.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 39). Love Affair is a little lighter, more saturated, warmer than Doomfire Magenta.
The same difference applies the other way round: Doomfire Magenta is a little darker, more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Doomfire Magenta on the colour wheel See Love Affair on the colour wheel
All matches: Doomfire Magenta equivalents · Love Affair equivalents