Trends in Relationships? (Long term) Did you go through stages?

My boyfriend and I have been going out since august, so a little over four months.

I've been in relationships, but this one feels more than right.

A month ago we had a lot of little arguments which were resolved, but we got stupid one night, broke up, got back together and things felt more than right then.

But our relationship, i noticed that we get into a lot of little sexual things. we've talked about it too but somehow we always end up falling into the same thing over and over again.

(We only get to see each other on the weekends cause we go to different school's in different towns)

Sometimes its okay (Every once in a while) but i like to also just talk, lay down and cuddle and all that and just not do anything.

Have you ever gone through these stages in a relationship, do you think after a year things will change?

And also, i really want to tell him something but i'm sorta a chicken cause this is the first time ill mean it.. any suggestions?