it's great that you have started riding and love it!
you must be in pretty fine shape to start out so strong (at least it seems to me). the bike club that i am familiar with has rides for all pace levels (such as...open, 10-13, 13-15, 15-18, 17-22), and rides vary in length, distance and terrain (both road and mountain biking). the focus isn't racing, just getting out there to ride.
so i guess you need to determine your personal goals and motivation for riding (which may or may not be the same as your boyfriend)......do you want to race or just ride because you love it, and then find the group that fits for you.