Is it normal i want to do this after breaking up?

So my guy or whatever he is and I are about to make a transition individually in our lives that might (or I should say will cause its totally falling apart right now) break us apart and go our separate ways. We have just been "talking" and getting to know each other yet in my eyes we were still an item to the point where if we liked someone else more and were interested then wed tell each other and say bye to each other.

However, first I have to say guys suck so much. Why can guys stay put with one girl ? Its so mean and rude :( I get eye candy and maybe talk to a girl for some spontanious feeling but not flirt or consistently talk to her. He was my first taste of a typical guy and I admit, I've been played. I'm a victim now of something I thought would never happen to me. Its been a year since we first met for all those months I've been dealing w his bs thinking he'd care at the end cause he likes me just as much. But I keep finding out these things of him I don't wanna believe like today I saw that he's been talking to one of his old flings I suppose and its whatever since he is technically single but the things he was telling her seemed serious and things he wouldn't tell me. And it would've gotten me furious but cause I'm so used to his crap now I just giggled it away like how pathetic can he be.

Its just not fair how he would raise my expectations about us one day and then the next day whatever. If he wanted me as just a friends w benefits then he should've not taken me out and hung out w me as much as he did. IDC if he did it because he liked me because if he did like me he wouldn't be inconsistent and treat me like trash the next day as if nothing ever happened. He is fake, living multiple lives like he treats me one way and then another not to mention he totally lied to this girl about what he did over the weekend cause I kno what he did but I think he just told her that cause he knos that's what she wants to hear.

So I plan to tell him all of this I just wrote and even tho I have a pretty good idea now about where we stand I still wanna ask him as a conversation not an argument bout how did he see us this whole time, who was I to you just out of curiosity because to argue and make it work I believe will just be a waste of time. So although it's going to end and as hurt as I am, I want to have like some sort of break up conversation just for a piece of mind. Sorry this is long BTW but it's just a lot I want to get out.