Unfortunately, you may not have any recourse, other than possibly suing for breach of contract (see below). Federal law does not prevent discrimination on the basis of sexual orientation in education, and neither does  your state's laws. Furthermore, if it is a fully private university, if it does not receive federal funding or support, it might not be subject to anti-discrimination law, even if any applied; and religious-based or affiliated institutions have some additional protections, when making decisions informed by their religious beliefs.If you have already paid for classes and been kicked out without a refund, the university may have breached its contract or agreement with you; review the terms under which you were enrolled to see if you had agreed to any provisions allowing them to kick you out under these circumstances. If not, you may have able to sue to recover some monetary compensation.