Bobbie,

You don't say whom you want to write to. It sounds like you are very frustrated, so I'd encourage you to draft a letter, but I'd address it in a diplomatic and polite way to the pastor. Only when you've discussed it with him and gotten no satisfaction (see Matthew 18:15-17) would I write the bishop, if at all. I would focus on how his actions make you feel and avoid accusations or the use of "you this" or "you that".

For example, instead of saying

"You went on a tirade, and I didn't appreciate that",

you might say,

"I felt humiliated and castigated by what you said to us on this occasion" (or however you felt).

He will be unable to argue about how you feel.

Try also to put yourself in his shoes; there may be a good reason you're not aware of why he moved the Mass time. Obviously, he had a reason. If you don't know what it is, perhaps you might invite him to share it so you better understand the rationale. Be sure to find some good things about what he is doing that you appreciate and include them in the letter. Above all, treat him as you would like to be treated (the Golden Rule, also in the Gospels, Matthew 7:12). Imagine if you received such a letter and how you would react to it.

Once you write the letter, set it aside for a day or at least a few hours and re-read it to be sure your temper doesn't show and that it comes off graciously. Run it past your spouse or your friend. After writing the letter, it may force you to think through things and change your mind about confronting him, so don't be afraid to abandon the letter after drafting it — far from being a waste of time, it is an exercise in processing your emotions and cathartic.

If you cannot write it to be gracious and without your temper showing, I do advise you to abandon the effort.

If you do choose to write the bishop after getting no satisfaction from the priest, it is advised to simply state the facts of what's going on dispassionately and leave the judgment to the bishop.

I don't see any canonical violations here, so the bishop may not be able to take any action as all of this is entirely under the discretion of the pastor.

Eric