Help! New to this...still hoping for R

[Rusty]

I don't think I can keep up with the reading, Tink!! I will, now here comes the really weird thing. Sunday, H was bringing back D. I was out walking the dog and came up while they were getting out of the car. H said nothing to me, didn't even say hello, didn't look at me. D came up and commented on my shirt (I was wearing my "Mother of the Groom" bachelorette party shirt) and we laughed. I just looked at H and said "Hello, you could at least say Hi". He himmed and hawed around and finally I just got mad and said "You could at least treat me as you would any normal person and say the obligatory hello, but don't worry, I'll just see you around". He got mad, called me and was yelling and I just hung up. Then he came charging in my front door, telling me he was sick of my crap, how poorly I had treated him in the past, blah blah blah.. All the same crap as always. I asked him to leave repeatedly and finally, after yelling for a couple of minutes, he left. Then, he called again on D's phone and asked to talk with me. He apologized, said he was still mad about the night before (me not answering all his late phone calls) and why did I tell him I was going to be seeing someone and possibly sleeping with someone else. I told him that I didn't say that, but that he had told me to move on and I intended to do just that. If someone came along, then so be it. I also said that I knew he was out and about all the time and I was told it was none of my business. He then apologized to D. Then he called me today to apologize again. I said it was okay, he was obviously upset but not to carry on like that again in front of D. He said he wanted to talk to me about some other stuff (I am assuming the fact that he thinks I am seeing and sleeping with someone) but our S had just walked in, so he would call later.
I think I am just going to carry on and not make a big deal of it and see if he ever does try to talk. I really think I am just so sick of all the crap and his immature behavior that I don't know if I want him back at all. He hasn't grown or changed at all and I keep growing and changing and really am enjoying the person I am becoming.
Is this really weird, disfunctional behavior? I guess it is, but I am just really sick of it.