When you fall in love is it okay to completely forget that that person exists just because you don't love them anymore?

When Natsu and Lucy are given an unbelievable mission they began to fall in love with each other. Sadly something goes wrong and tears begin to fall.

This story is my version of 'Lucy the Elemental Dragon Slayer' by @Nalu2131

When Lucy, a badass bitch, joins the guild Natsu the, used to be playful, loner attempts to ignore her but fails miserably when he falls for her. Now he fears that she likes him back. This is terrible. Last time this happened he died. Nobody should have to die more than once. As the guilt from his past rises he begins to change drastically. When Lucy notices his change in character she tries to warn the others. Can she keep her own secret and save the guild at the same time?