Does this girl like me?

hi, im 16 years old, an i really like this girl alot. shes one year older then me. i know her for about a year already. she was in a 3 year relationship with some chump. i told her once that i really liked her (like a year ago when i met her) an everything but she wouldnt get with me because she wasnt that type of gurl. my sister in law once told her that i liked her an she said that this girl got all shy when she told her that. she recently broke up with her bf like 3 weeks ago. she went crying to my job an i holded her tight an she cried on my shoulder. we would text alot when she was with him. i had a girl too, i would talk to her when i had problems with my gf an she would talk to me about her problems with her bf. i always giver her good advice about everything, life, school, an her future.. an she likes that about me. i tell her ima join the Marine Corps an she also kinda likes that. in these past 3 weeks its been non stop texting. she text me in the morning to night. i sended her pics if me an she now says that im very cute. also she once ask me if i have a girlfriend. i went to her job an she looked happy. my cuzin met her an he saud that she does likes me. she started poking my stomach too. but yea she calls me "dude", "man". she knows some of my family members an says she likes them. its been twice when i told her if she wanted to go to a movie but she always says whos going, i thik she doesnt want to go one on one. she wants to be with my sister in law bcuz she knows her. also i jjst invited her to six flags the 23rd an she accepted an said shes defenitly going. her parents strict. now she recently called me crazy because i told her ima join the Marines an be Infantry an shoot ppl an eat baby guts. she says i look like a serios guy an i scare her..but i dont know what to do an think. sometimes i just feel like forgeting her because i feel like shes playin me. but who knows she just broke up with her ex right? i dont want to be the rebound. my cuzin says to be a gentleman an dont bust a move at six flags, just with my eyes. to wait for her, an if she does to tell her "ey, u just broke up with ur man, an i really like u alot but i dont want to be in the mess that you still miss ur ex" or what should i tell her ppl? please help me out. thanks an sorry its long.