American Netflix for my iPhone 5c but not working?

I've had it before and it worked fine but the other day it stopped working and I couldn't watch anything. It showed a "can't play title" message and I've tried every dns code I could find to try and get it to work again but it keeps doing the same thing.

How to get internet outside the USA?

Ill be traveling abroad during the summer to Mexico and will need to have access to internet on my phone. I currently own an iPhone 5s and i'm with Simple Mobile, the sim card and not on contract. Can i just change my provider to T-Monile or are there further steps i need to take?

What should I do in this case with my ex?

We broke up and my parents took my iPhone away so we couldn t text each other, and my Dad said not to talk to each other, and I was like ok. But my parents let me check my iPhone, and she sent me a message. It was like IIm sorry I hurt you, can we still be friends. I have not talked to her, but was in the same room as her at school, and she was talking about this guy at teh store she works at and how she was going to ask him to prom. And (even though I didn't show it) I was so mad. I was astounded at how much of a… Yeah she was being. What should I do?

Is it hard to get a virus on your iPhone?

My mate uses online banking on his iPhone so he was just wondering how "secure" he is using it. He only watches anime on his phone and twitch streams that's it, he used to use different anime sites but now he sticks to 1. Is it possible he could have gained a virus simply from visiting a site, or is it very hard to get a virus on iPhone?