Texting your wife is extremely inappropriate.
You have the right to let the other elders know that Joe Elder alone is texting your wife.
Elders' Manual p. 56
Cautions Regarding Assisting Sisters
27. Elders and ministerial servants must never
meet alone with a sister not closely related to them
and should avoid becoming the sole confidant of an
individual of the opposite sex who is experiencing
marital problems. This includes lengthy phone conversations.
Of course, this does not mean that it
would be inappropriate for an elder to talk with a sister
while in the full view of others at her home, at
congregation meetings,