I Need Help Understanding Something

First of all, I'd like to state that I'm antivaxx, antimask, etc.

To make a long story short, I have a friend who was a genuine born again believer in Jesus Christ. My friend lived a life that left no doubt whatsoever that he loved God above all else and the fruits of the spirit that he produced left no doubt that God and the Holy Spirit lived within him.

My friend decided to take Trump's vaccine even though I told him all of the dangers associated with it. I literally begged my friend not to take it.

Well, my friend recently took the vaxx and after the vaxx, my friend no longer seemed like my friend...its as though I never knew the man. He was cold and far away...he started treating his wife like crap and worst of all he denounced both God and the Holy Spirit. He said his life prior to the vaxx was an "act" and as far as he was concerned God is a myth...a crutch for weak people.

Even further, he frequently used God's name in vain, and displayed the characteristics of a very evil and wicked man.

I need help understanding the radical change in my friend. Have any of you had this experience?

In closing, my friend recently died from a blood clots that were formed in his legs, lungs, and brain.

I'm inconsolable.