Replying to Girl problems

ok so i know that everyone is going to say ladies men cult, but i need ur opinions quick...

there's this girl who lives in one of my best friend's town, and ive hung out with her only like 5 times, but we talk a ton... 2 nights ago we went into boston and we were together for like 5 hours and then last night we were at my friends house for another 5 hours... and like me and her were together a ton, and we were always walking in the back and holding hands and last night we looked at the starts and we walked her back home which is a 30 minute walk and we held hands the wholee way and she like clinged on to me

but i am not sure if she likes me, becuase she is a flirty girl and flirts a little with guys, but she was like defidently more flirty to me, and she kept saying all this stuff to me about how nice i am too...

so how do i ask her if she likes me without ruining our friendship? and this really sucks because im so whipped

please help