You will need to go to the carrier and ask them to unlock it. Depending on where you live and who your carrier is, there might be a fee or a wait time. Once the phone is unlocked, you can then use it with another carrier abroad.
I have the same problem. I usually prepare some snacks and cold drinks and leave them on my nightstand, along with some coloring books and pencils. Get a book and...
I'd recommend you get to know her better. But before that, get to know yourself. You have to understand what she meant by "emotional" and "moody. For example, it might...