Is this girl legit?

[voicelesstub151]

So this girl added me on a messenger app randomly. I know she got the details from instagram plus she also followed me so I know it's her. But things are a bit weird. Some times she gives the most lovey dovey replies, but there are times where the replies are one word answers that make it seem she's telling me to f*ck off subliminally. She can only call me fron her cousins which she did and she was whispering during the conversation. I asked her to play the question game to find out more about her and she said "ok but not on here". Well where else are we supposed to play??? Guys I'm confused