Should you be with someone who likes you but is not emotionally invested in you?

Never.

1. Sex is a short term gratification.Bonding is long term
2. Love is an intoxication and if channeled properly, can be manifested to highest forms of achievements.Methods which I teach are just to get you love and NOT become another Don Juan, because every sex is same if their is no love, but with real love, even a touch is orgasm.Forget touch , just voice of your love will melt in your ears like melodies of Beethoven.
3. Yes to get past conscious mind and biases of your lover, some tricks may be required.

Source: Should you be with someone who likes you but is not emotionally invested in you?