Dear Abby: My friend accused me of lying about my degrees

Dear Abby: A longtime friend recently accused me of lying about my education, and I’m still stunned by it. I completed my undergraduate studies in the U.S., earning a BA, and later earned a master’s degree from a French university. Recently, during an exchange on Facebook, my friend asserted, quite confidently, that I was lying about my academic history. When I corrected her, she doubled down and said that because of this, she wanted to cease contact with me.