I am having problems with my feelings for my boyfriend?

I have been with my boyfriend for a year and 3 months and i love him..i think i mean I feel I love him but theres times when I just extrmemly dislike him. I also feels he thinks too far ahead hes already planning marriage and all that and me I'm just trying to graduate from college. He's a sweet guy one of those guys that is a keeper. But I have doubts at times like I feel like I love when hes here then I feel like I'm being tied down too much. All my friends besides my best friend like him even my parents love him especially my Dad....then why do I feel like I don't feel as strong as he does towards me and have all these ideas of the future with us...I see all these other men and wish I could have a guy like them then feel bad because I love my boyfriend PLEASE HELP ME!