So, I'm only 17, I've been in a relationship for almost three years now, and I have a lot of unsure feelings, him and I have been through A LOT together. We've broke up before but only for like 3 months, since then I've been feeling like there's more to life than being in a long term relationship, I love him to death, but I'm only 17, and he's only 19 and I feel like there is more to life out there for the both of us, I just don't know how I should bring this up to him and talk, and be understanding. Help?!