To answer your question…will an Ivy League girl reject you because you went to a lower college?
The answer is “maybe.” There are all kinds of people out there. Some may reject you because of your school or level of education, some may reject you because your family doesn’t have money, some may not click with your personality, interests, or sense of humor, some may not be ready for a relationship, some may just not be feeling it…etc. Somebody who rejects you because you don’t come from money or the “right” school isn’t exactly a keeper…IMO.
Some may even reject you because they don’t want to deal with your mother.
The qualities that make you a good person and a contributing member of society do not suddenly increase when a person enters the Ivy League.