We've been broken up for more than half a year. During this time he messaged me about 5 or 6 times. The first was him asking to meet up with him so he could apologize for the way he treated me. I told him I was seeing someone and that it wouldn't be fair for me to meet up with my ex. He then wouldn't leave me alone so I said to just say it though text in the hope he would leave me alone. He then continued to message me about every month so I blocked him. Now it somehow unblock him and he's been messaging me again and finding different ways I message me.