Writing journals to him

My bf and I got into a big argument the other day which led him to block me. Since then he has broken up with me but he is aware that I am going into no contact with him for a month. I’m hoping it’ll help me work on myself and I’m hoping for him it’ll give him an allotted time of space to either keep moving forward or miss me.

Before telling him that, I would write “journals” to him through text bc I knew I would be blocked. It would help me say anything I couldn’t say directly to him. Being in nc, I go back and forth of wanting to cont doing that bc I know one day he’ll unblock me and will have everything right there. But another part of me doesn’t want to bc I want him to see nc means nc. I want him to wonder and I feel like no matter how much I pour my heart out, whether he sees it during nc or after, it won’t change the outcome.

Would writing in a journal be better?