So I usually text my fiancee from work during day. Yesterday just had no signal so decided I would use my macbook to imessage her iphone SE. All good. Now this morning I got to work and tried to text her on my iphone 6s plus. but I am not able to, it defaults to imessage. In message settings it is set to send via sms if imessage not available. I have turned off imessage and sent. It worked until I used my macbook. Has this messed something up? I know I can turn it on and off in settings but as it was working before I used the macbook then should work again? Or by using macbook has apple now linked her number with imessage as apposed to sms?