Past stands in a meaningful way to our present--- always. It is funny to see how our behavior as human beings is shaped by our past experiences. We as humans do not have enough capacity to think outside our own experience.

Ask anyone anything about anything. And they would first look at it through the lens of their own past, and then give an opinion purely formulated in accordance with that past.

A person who happens to have a relation marked by integrity, honesty, loyalty and trust would only speak to you of happiness, trust, satisfaction and so forth. The person who had not been lucky to find these virtues in his or her own love life, would keep on talking about suspicion, infidelity and so forth.