true love?

Just a heads up. He is going to sound like a jerk. But I've dated many of those and he is nowhere close. Btw he is one of my brothers friends. 

To sum up his/our? Situation. He's been dating this girl on and off for 2 years. Every month or 2 she breaks up with him or stops talking to him out of no where for a week, or 3...

About 3 months ago they broke up for like the 5th time in 2 years. He ended up liking me, while I was dating some random dude for like a month. I also started liking him. Since my brother and I share the same friends, it was always a joke that me and him would flirt. At first it was as a joke to make everyone laugh. Then it started to actually become real. I broke up with the kid I was seeing, I was planning on doing it anyway but he just came at the right time. We dated for about 2 weeks before he broke things off with me to try and fix things with his girlfriend, again...

Best 2 weeks of my life.

We weren't really close at all before we started liking each other. Barely talked honestly. We both actually didn't like each other when we first met. I thought he was a  douche and he thought I was a bitch. 

Ever since we stopped seeing each other we havnt really stopped hanging out. Our feelings have only gotten stronger and continue to each time we hang out. Occasionally I'll talk him into fooling around, cuz tbh I don't care about his girlfriend or whatever she is. Cuz he doesn't even know what they are half the time either. To this day. 

Here's some of the things he tells me, that I've actually already thought it my own head. We know no matter who I happen to meet, if anyone and even if things do work out with his girlfriend. We are going to end up being together. He already said he knows I'm the one he is going to marry. He doesn't even want to get married, but he still has this gut feeling I'm going to be the one. I have that same feeling. Since day 1. He says he doesn't want me to move on cuz he knows it's going to hurt, but he isn't going to stop me from doing what I want. Just wants me to be happy. Cuz again he knows no matter what happens with either of us that we are going to end up together some way some how. He told me he loves me and always will. He has feelings for me that will never go away. If I find someone and he is single he isn't going to look for another girl, cuz he wants me. 

The thing is, I have him right where I want him. He hangs out with his gf but then still hangs out with me after(not fooling around, only do that when she stops talking to him) he hangs out with me more than he hangs out with her, (when they are actually talking)

This is where I think I need the advice cuz I can't bring myself to do it. I don't want him to stop liking me. I want him to miss me more than he will miss her. My plan? Whenever he wants to hang out, gonna tell him I'm busy. Whenever he comes over to hang out with everyone. I'm gonna get all dolled up, leave and act like I'm going on a date. Even if I'm actually just driving around for a few hours or seeing my girlfriends. I just need him to realize what he already knows. 

I know I'm all over the place cuz obvious it's not the whole story. And I know he sounds like a jerk. But it isn't like that. He just doesn't know what to do. He loves someone he's been with for 2 years, yeah she may be a jerk and he shouldn't love her, but he does. Then there is me. Love number 2. The one he knows he should be with (his words) but he can't just get rid of the girl he's been dating for 2 years with a snap of his finger and just be okay. 

I just need to make him miss me. I'm too available. I'm not going to get anywhere being available. He needs to miss me? Right?