Taurus: how do you let go?

I have this weird relationship with a taurus male friend. Both of us are tauruses.
Anyways, he got mad at me over something small and blocked me from calling and texting.
I called from another number asking why? His answer? He's frustrated with me...

Previously, he did his usual stuff where he took forever to answer my text. I was waiting on an answer from him I needed.
After two days, he responded....and he knew I needed a quick response.

By the time he responded I was upset and text back..." It shouldn't take so long for a two word answer!"
So, I have other projects and then he waits five days later to block me.
Now this person has pissed me off royally over the years but I considered him a friend and let things go.

We haven't spoken in a month and when we were at a recent meeting, we didn't speak but he made a great effort
To let me know he was ignoring me which I found rather funny.

Background. We loved each other at different points in our friendship and since have moved on. At least I thought we
was cool but I guess he hid how much he really didn't like me.

After he has done this it has affected me because it hurt he wasn't able to express himself instead of just tossing me to the side.
I thought we were great friends....and I'm having a hard time processing his behavior. It's confusing...

Anyways, how do fellow t's let go? I know I have to do it as it's been a month and since we are both stubborn I doubt one of us will give in.