High school-college dating

I'm in high school a senior & my boyfriend is going to college. We've been dating prior for about 7months and now it's time for him to go away. He's only about an hour away by train but he won't be coming down often I can't expect that of him. So with me finishing up stuff here & him there I worry. I've only had abusive/cheating relationship before this one and I'm stressing if he'll cheat on me and want to experience girls in college he can be around 24/7 rather than stick it out with me every two weeks or so. He says he loves me and doesn't want to ruin what we have over something as silly as distance especially wen he's this close & his father cheTed on his mother & he takes being a better man than him seriously but I can't help feeling nervous. My heart says he won't cheat m head tells me of course he will bc there's better girls out there than a highshool senior. Help/opinions/experiences like this would be appreciated. !!