My sister used to be kind of like that as she was going thru counseling. I think she was working on being her “authentic self” so she would grudgingly hands and had a semi angered expression on her face as we had prayer at family gatherings. If you tried to talk God outside of meal blessing, she would say “I’m not discussing that” and just stop the conversation cold.
Thank God she has softened some since a number of hardships have happened and I think she is some what back to belief in existence of God.
Hardships and deliverance from them by God reinforces His presence and oversight in men’s affairs. I am a multiple recipient the last few years an very thankful for it.