1) is it a good idea to ask if the girl i like is dating someone already? like if she says no and why then would it be ok if i answer back and say because i like you and so that i idont have to worry about you taken or something blah b lah blah

2) so this same girl i like seems to like me back also because whenever we are in the same group or whatnot she always looks at me and stuff like that. but whenever we are alone like during classs ( we are in the same class for one class) and there is like empty seats to my left and right she would not sit beside me but instead the row behind me. or whenever i see her in the library or something and i go up to her then shes like oooo i have to go somewhere now bye wtf? what should i do?