Lyric discussion by sokorny 

Cover art for Not in Love lyrics by Platinum Blonde

Could it be that they are actually very much in love, but are trying their hardest not to fall in love (because of the pain that love can bring ... or at least the ending of love).

Or alternatively is this about sex (and not love)?? "It's hot inside" ... could it be implying when they have sex she feels hot inside (literally)? Thus, trying to convince themselves that they are not in love (only sex).

The "no, no, no" .... line sounds very much like someone on the brink too!

My Interpretation