I need some advice about my long distance relationship with my boyfriend. Please somebody?

I'm 17 years old, my boyfriend and I have been together for about 9 months now, but we don't live near each other and consequently see each other about once a month when we spend about a week together, we also talk nearly everyday on the phone. At the beginig of the relationship everything seemed perfect but recently we've been arguing alot about silly little things. I also find that he can be really jealous when I go out with my friends and he texts me to see where I am and what I'm doing. I know he loves me, and that he would do anything for me, but now I really don't know what to do. If i'm having second thoughts does that mean that we shouldn't be together? Also in September I'm going to uni next to him, so it won't be long distance for much longer. I do still love him but i'm so confused, i've talked to him about this but he begged me for another chance...please help me!