The universe is so unimaginable large and there are so many stars and planets that there are good chances of the existence of extra terrestrial life, but at same time there is a very small chance that they can find us, even if they are advanced enough to search for life in the universe. If they are much more advanced than us they probably don't care, in the same way we don't care to try to make contact with all the ants of the earth.

If they're looking to build a relationship with Hunanese people, I hope these aliens are ready for spicy food.

My opinion is that the probability of life developing on another planet, advancing to interstellar travel, and being physically close enough to us to visit us during the last few million years is so implausibly tiny that anyone seriously asking about their relations with human beings can be safely dismissed as a complete rube.