He said I was harassing him

We had a falling out about a month ago because I finally spoke up regarding things he was Doing. For example he would go out at 10 at night , not answer his phone but message me in the morning as nothing happened or he would say he left his phone somewhere. Or if I texted him he would say he fell asleep. So of course I would get angry feeling like he’s playing games. I am such a calm person . I have cursed him out one time but he has a habit of making me feel like things are in my head and Im overthinking. I started to research gas lighting because I wasn’t sure if that was happening to me. I have always helped him, been there for him but it seems that when it’s time for him to be there for me emotionally he’s never available. My period was a week late so I took a pregnancy test and so I texted him saying hey is it possible for us to talk and he responded no because your playing games and I was shocked because he was the one that was calling or texting me when he wanted to and not answering my calls or messages so I just stopped calling because you can’t make someone want to speak. On the phone he’s very aggressive saying what you gotta say and he just has this angry voice like he’s aggravated so I just said forget it because I was just scared to speak he then proceeds to say I’m harassing him. I immediately got off the phone. I just want to just block him because I have a great job and I don’t take those words lightly .i feel extremely sad tho because I was so kind to this man. Should I just block him and never speak to him again or just wait u til he calls or texts and just send him the definition of harassment so he understands why I never reached out again. I am actually okay not speaking to him again - I know how I treated him, and I can always say to myself I treated someone good even though it wasn’t the same.