Search Results: making it official

So Anonymous has been making headlines for a few years now. If you don't know who they are, they're sort of a global hacking group. They don't do "little" hacks though. They hack news stations, social media accounts and everything else to get what's on their agenda done, and spread their word.

Here is one of their videos so that you can kind of get more of a feel for who I mean, this was taken from one of the official channels:
https://www.youtube.com/watch?v=VT2CjGNjtoM

Now I realize they might seem like American terrorists I suppose (that's what my sister said anyway) But, they have also sort of waged their own sort of war on Isis for what happened to Paris, and now they've started donation campaigns to give presents to kids whose parents can't afford them. Now I personally see them as sort of an anti-hero. Keep in mind though, I am EXTREMELY distrusting of the government.

I want more thoughts on this though, so I thought here would be a good place to get such answers.

I know we're not together, but when a guy starts doing all this big talk about having a future with you for the next couple years you start to develop some expectations. I've been seeing him for two and a half months and we've both discussed making our relationship public and official down the line. HOWEVER, it's been brought to my attention that he was seeing another girl as well (WHICH IS FINE! He's single! He can see who he wants to see!) I don't really care who he sees or what he's doing, all that matters to me is that he makes me his girlfriend at the end of the day.

I was at a party last weekend and his best friend called me "Michelle". I told him that wasn't my name.
He proceeded to call me Michelle "I'm gunna call you Michelle anyway!"

"NO, thats NOT my name."

I connect the dots (JUST BELIEVE ME WHEN I SAY I CONNECTED THE DOTS; I dont wunna put all the business on the internet)

and figured out this OTHER girl's name is Michelle. What pisses me off is the fact that his friend thought it was SO amusing he would call me by HER NAME. --- W T F?

I'm not sure what to do with this information I've learned. I can tell you that he's not the last boy I kissed, but I have been serious about having a relationship with him since we discussed it. And even though he can do what ever he wants and see who ever he wants while he is single including see Michelle --- I do STILL want to end up with him in the end. I dont wunna fuck that up by showing jealousy or confront him or getting mad. I am tempted to get back at his friend though.

BACK GROUND INFORMATION: I'm 20, he's 18 and the OTHER GIRL is 16

If you were dealing with a girl for a long time (as in several months of: hooking up, hanging out, fwb) and never making it official because 1) you're not sure if she's the best you can get, 2) whatever other reason, and then one day when you reach out again she tells you she has a boyfriend now, would that make you more "jealous" or make her seem more attractive?