Have talked/been talking?

Please take a look at this and tell me if I should say "have talked" or "have been talking"?

Normally I would have made my mind up, since we have talked/been talking together (on the phone, several times, prior to this), but I can't seem to figure her out, so I guess I'll have to wait deciding anything till I actually meet her in person.

(The things written in parenthesis is for context. It's already known so I won't include it in the dialogue.)