Matching Pairs The science of falling in love - VOCABULARYOnline version match up by Micaela 1 lust 2 asexual 3 head over heels (idiom) be completely in love with somebody not experiencing sexual attraction towards anyone of any gender very strong feeling of sexual desire 1 stuck in a loop 2 feel-good 3 it’s fair to say making people feel happy and optimistic about life used to introduce a statement you believe to be true and reasonable unable to break the habit of repeating the same patterns of behaviour over and over again