Question about a girl. help me plz?

ok i just totally love this girl, she is amazing, sweet, and i just totally like her, she likes me, but we live like 50 miles apart, i rarly get to c her but i need some help. idk what to do, i really like her, but i just have a bad felling about it, because shes so far away, idk if i can trust her, what should i do,? thank you so much