Have read every post. IMO the bf is not much of a boyfriend to ignore 15 calls no matter what. She could have been in some type of
Trouble and needed him. That many calls has an urgent feel to me. Jmo
Do we know what time the calls were made? If they were after, say, midnight and they were having a fight, I think it's likely the boyfriend would have turned his phone off and gone to sleep. If she were truly in trouble (stranded with no gas, whatever) surely she could think of someone else to call for help if he didn't answer.