Is it worth even risking?

Last summer I liked a girl and I thought she liked me. We talked a lot, hung out a lot with other friends around, and a couple times alone. On the last day of summer break before she went to college, I went to her house late at night to confess that I liked her a lot. It got weird because her mom came out but she left us alone for a couple moments, I told her and we kissed. After that, we didn't really talk at all. Now it's a new summer and we share the same friends, so we have seen each other and I haven't lost any of those feelings. If anything I like her more. I just don't know if it's worth risking again: Going so far, and then being heart broken afterward when she goes back to college in a month. But then, I don't want to lose a chance to be with her. I don't know, I guess I just need a little advice or maybe what would you do in my situation?