Well it's your fault. You are the one who knew that your mother was getting a SRO seat for you, yet still bought the other ticket. You knew you were paying more, but you still bought it anyway. Suck it up.
"He found something that he wanted, had always wanted and always would want— not to be admired, as he had feared; not to be loved, as he had made himself believe; but to be necessary to people, to be indispensable."
-F. Scott Fitzgerald's This Side of Paradise