Again, if you had a friend (or wife!) who went missing, wouldn't you want to help police find her? There seems to be a pattern of behavior here.
I'll take the next step. What was the nature of their friendship? Acquaintances? Did they date and for how long? What where the circumstances of the breakup? Did she start dating Paul Flores right after? Do we know she went into the dorm and went to bed after Paul Flores dropped her off? Or did she get a phone call, run into *someone* who wanted to 'go talk' or party some more that night? Not unusual for college kids. Many scenarios opening up here, including that this could all be a coincidence (likely not).