My boyfriend and his daughter.

Before I get into what I have to say here is some information about us. I'm 23 with no kids my boyfriend is 25 with a 2 yo. Me and my boyfriend have been in a long distance relationship for a few months short of a year. We have had visits back and forth between us over the course of our relationship. This summer we decided that I would come to stay with him for the summer so we can be together for a longer time. Lately I've been feeling like I am never a priority. I expect his daughter to be most important but I feel like I'm never a priority. I feel like it's a little selfish of me to want time with just him. All summer we've had one day with just us and it makes me sad. I really hope this isn't what forever will be like because if it is I feel I can't stay in the relationship. Is it awful of me to want to be able to just be a couple sometimes?