tired of my boyfriend?

So eve girls, me & my boyfriend have been together 9 months today & we were gunna hang today & then he cancelled plans on me bc he said he wanted to hang with his brother & dad ( yes I know it's Father's Day) but my family was expecting him to come over & he always sees his dad & brother & since I work I barely get to see him as it is. I also have a crush on someone else. Idk what to do tbh.