What even are men at this point?

A couple of weeks ago a man was supposed to come meet me, and said he'd be there in 30 minutes. He didn't. Didn't hear a thing until the next morning when he wanted to come over for 'fun' and I text him back saying he'd lost all his chances. He replied saying he doesn't get chances, he gives them, and I shouldn't act like I'm better than him by giving them out, and he's the best.
Yeah ok, no, bye!

Then, a guy I was seeing for a long bit, who blocked me a year ago (for asking for the money he owed me) pops up on snap. I was expecting and apology, maybe he was gonna right the wrongs. Nope. He sent a pic of him saying he didn't know who I was, and another pic of him. Just fishing for girls. Ignoring or oblivious to my name and the fact he added me from contacts so a big clue he already knew me. And my name isn't rare, but unless he has the numbers of a hundred people with my name in his phone....

Where on earth do I find the confidence men have? And these are single men in their 30s acting like they are gods gift, but... they are just idiots. With no sense of other people's feelings.

I'm a big believer of you can act how you want, just don't expect other people to put up with it, and I'm not putting up with it. I've ignored both of them since. But these are men I've known/met before. We've had hang outs and chats. I'm not an anonymous tinder swipe.

Sorry for the rant or whatever. I just don't get why they act like dicks, dissappear, and pop back as if I forget who wronged me.