Cashart, I have not read your other posts, but simply based on this one, yes, you do appear delusional. Note that when a person is delusional, she does not always realize that she is - that is the trickiest part of psychotic ideation.

Let us look at what you said.

He is cold.

You attribute his coldness towards you to his either having been unfaithful already or plotting to commit an act of infidelity.

So in your mind, if spouse A is cold, it makes sense for spouse B to suspect that spouse A is unfaithful.

OK, let us go on:

you are being cold to him
you know you are being cold to him
you feel justified in being cold to him

But wait, are you unfaithful to him?
Because earlier, you interpreted coldness as a sign of his being unfaithful to you. So, it must follow that you are unfaithful to him. But you are not - that you know. So, the logic is sick here.

I hope you can see that.

It seems that other people who have responded on your thread know your situation a little better and that you are basically manic. I am just analyzing the post as a stand-alone piece of information.

Because it seems that yes, you have irritable mania, and yes, you have delusions, and because it is known that manic people tend towards impulsivity, your current state is a recipe for disaster unless you acknowledge where you are and seek help. Do not make any far reaching plans at all - wait until you are through this phase.