I don't agree with the statement that Jesus will judge everyone, obi, I accept that you believe what you believe but I think some of what you have said is complete bullshit. I've a feeling you will judge me for saying that.
Who decides what is a lustful look? When people fall in love and gaze longingly into each other's eyes, are they doing wrong? The answer is no, they aren't.
Lust is defined in Chambers dictionary as a desire, longing or appetite. All those are feelings, not actions. There is nothing difficult about that idea.