Why is my ex still trying to hurt me?

I have an ex girlfriend who I still love, but I hurt her very badly and we were on and off until she broke up with me for good about a year ago. Long story, we fought a lot during the break up, she would try to make me jealous, then she would say she wishes she could hurt me just as bad as I hurt her. She ended up coming back in my life by the end of last year and claimed she forgave me but wouldn't forget and then said she isn't interested in another relationship with me because the first was based on a lie… She threw my past of what I did to her back in my face, so if she isn't interested then why is she still trying to hurt me? I mean she's the one that asked me to help her so she could get back on her feet, so I did. She got mad at me over a screenshot, had to prove I was innocent and then has her friends block me, they hate me and she tried getting my attention the day after she got mad for the screenshot by unblocking me on Instagram to tag me in a comment I made on her friends photos and blocked me back. (All I put were heart eye emojis on her friends photos for those who have an iPhone) then she got mad at me, she said "Love how you follow all my friends, stupid. Like stop stalking.) and I don't talk to any of her friends, I know them so I follow them. So I don't get it. It's like she's punishing me and teaching me a very and extremely hard lesson.

APPLE IPHONE 6 Has there been a problem that causes, HIGH DATA USAGE and high bills?

APPLE IPHONE 6 Has there been a problem that causes, HIGH DATA USAGE and high bills? - 1

Added (1). We were traveling for an extended period internationally. I finally had to suspend data on my phone and buy and international Sim-Card.
I remember seeing an article yesterday about a problem with the new IPHONE 6 hardware that showed out as HIGH DATA USAGE, that was ultimately charged to the user's plan. I'm starting to search about this before changing my sim-card back to the US card.

How to stop my iPhone connecting to a slower Wi-Fi network?

I live above a pub where I work, they have the cloud Wi-Fi, which is ok when IIm in the pub. However, I have better sky Wi-Fi in the flat, but every time I walk through the pub back to the flat, it connects to he cloud and I have to manually connect to my sky Wi-Fi. If I don't do that, the Internet doesn't really work, or is very very slow. Is here a way to solve this?

What does it mean when your iPhone syncs your bookmarks?

I have an iPhone 5c and I tried adding a bookmark to my list on safari and a message popped up saying "bookmarks are syncing at the moment try again after synching is finished" what does that mean? Synching to what I'm not connected to a computer.

Which device specifically downloaded an app?

Is there any way to find out which iPhone directly downloaded a certain app if you are all connected to the same iTunes account?
Is there anyway your carrier can tell you which one specifically did it?

Why can't I use Wi-Fi on my iPhone as a hot spot?

I can only use my phones network carrier data and 3G when I go to use my phones hotspot and not Wi-Fi. I used to be with BT Wi-Fi but can't afford it at the moment. For some reason I'm
Able to still use BT Fons on my phone for Wi-Fi. But can't connect it to my laptop. Any help would be appreciated