<human>: I've been with my boyfriend for almost 12 months now, and we still both have not said "I love you" to each other. I'm his first girlfriend and he's my second boyfriend (I did say "I love you" in my first relationship but I was dumb and he turned out to be an abusive asshole). 

We've had lots of great times over the past year, he is my best friend and I love talking and spending time with him. No one makes me laugh more than he does. He is so kind, caring, patient. But sometimes I feel like there's something missing... that feeling of being madly in love. Having this being only my 2nd somewhat serious relationship, I'm not sure what I should do. I always hear about how the spark fades after a while and you're not supposed to be all passionate and stuff, but more comfortable. I don't know, I feel like there's always something holding me back from saying it. I also get the feeling he does love me but is hesitant on saying it because I haven't. 

With the big 1 year coming up I also feel kind of commitment-phobic... like I'm young and should be exploring, not being in a "comfortable" relationship. I don't know if the grass is just greener on the other side. On the one hand, I am content with the relationship and I would miss him terribly if we broke up. On the other hand, there are some things about him that bother me (e.g. he procrastinates a lot, not very responsible/doesn't get very good grades). We've talked about it and he's trying to change but I think that's just how he is. I have still wanted to be with him despite these things but they do bother me and I don't know if I'm setting for something less than perfect. 

I know I'm still young and we're unlikely to get married or anything, but I don't know if I should be single for a while to work on myself. Any advice is appreciated!

Provide a brief overview of the text.
<bot>: Not sure if I love/ever will love my boyfriend of a year. Wondering what's holding me back/if I should break up.