You communicated. You established what your boundary would be. You took a stand. You are living with the consequences. GOOD FOR YOU!
Give him time to "get it." His daughter is his little girl. He has to "get" that she's an alcoholic, come to terms with and accept that. He has to "get" that you're more important in his life than an active alcoholic (or the end of the school year).
If he doesn't "come around," is that someone with whom you want to be anyway? Literally "come around" too.