What’s wrong with that? Obviously you’re exaggerating with the “full life story” stuff but fair play to her, i’d prefer that than the opposite. Maybe instead of her “talking at you” you let her talk with you? 1) she’s new and it’s never comfortable being the new one and 2) she clearly wants to be someone you can consider a “work mate” and team player. Would you prefer her to distance herself from everyone? Make herself feel unwanted and shit? Make you and everyone feel you can’t trust her? Or would you rather her engage and help you pass on the work days with natter? I know which i’d prefer. It’s not even about the quality of conversation for me.