The Imperfect Husband (Misled Mail Order Brides #4)
Ruth Ann Nordin

Though Annabelle refuses to believe it, Ben's motives were good. If he hadn't stepped in to marry her when he did, she would have ended up with a man who engages in unscrupulous behavior. The trouble is, she refuses to believe him, and worse, she won't even give him a chance to prove he can be a good husband. So in a desperate move to figure out how he can make her fall in love with him, he disguises himself as a woman and joins her lady's group.
The Imperfect Husband is a romantic comedy of one man's attempt to woo the woman he's been secretly in love with ever since they were children.