If you really needed to come onto a forum and ask about something so trivial like this, I"m sure she probably is playing you like a pushover.. Trust me, if a girl REALLY likes a guy, shes not going to say some **** like that unless they're actually been dating for a while and its serious.
I mean would you mention or call a girl you really like but barely had anything with wifey or suggest something like that? Hell no. UNless, you're a simp.
To think about this situation in reverse, I say alot of **** like that with girls I don't like that much.. because i know that no matter what, I don't really care about them. You're probably like a 3rd string option.
But, you could say "woah now that's some wishful thinking" "I'm thinking Captain Spank A Hoe instead?"
P.s. best part of this is "via whatsapp".. idk where you're from my man, but if a girl is talking to you on whatsapp, shes also talking to 5 other dudes.
If this is a LDR thing, disregard everything I said.. because those who go for LDR's are a whole different bunch/different story than the real social American or UK Dating scene