Have we grown apart?!

How much can a person take? How long are you willing to fight? A relationship takes two people to fulfill each other's needs and wants. I am grateful to have a man to love, cook, clean and does basically everything for me. But is this what I really want. Do I really love him? I don't know. Of course, I have been tempted plenty of times to leave and do bad things. When I met him I was seventeen years old and in High School. On my way to College, and since I lacked funds, I moved in with him. Things was all fun at first but that's just like any relationship. How can you keep the spark in any relationship. All relationships have good and bad days. But when the bad starts to outweigh the good, then it's time to let go. I'm content, comfortable, and safe with him. I just don't know what to do. I'm confused. I have people telling me to leave, stay, or just do me. There are a lot of things I want to do in life, that he don't want to. I feel like, if you don't have anything in common then how is it going to work. I will let nature take it course and last year was the test and this year would be the answer. We'll have to see!