need advice?

i don’t hangout with my friends. I see them all the time at school and i love talking with them and catching up but anytime they ask me to hangout outside of school i get so annoyed and irritated by the idea. it sounds so unappealing. so i make a excuse like i have homework or chores or i have to watch my sister. but with my boyfriend...i could never get sick of him. i could spend days on end with him, even when i see him at school all day. i miss my friends. i really do. how do i start wanting to hangout with them? why don’t i get sick of my boyfriend?