If everything happened in Indiana, sorry, your state has abolished alienation of affections lawsuits.
Quote Quoting IC 34-12-2-1 - Causes of action abolished
(a) The following civil causes of action are abolished:
(1) Breach of promise to marry.

(2) Alienation of affections.

(3) Criminal conversation.

(4) Seduction of any female person of at least eighteen (18) years of age.
(b) This section does not affect a cause of action described in subsection (a) that accrued before June 10, 1935.