Zandalee

Zandalee Martin is a young boutique store owner living in New Orleans who is sexually frustrated and feeling unfulfilled with her marriage to Thierry Martin, and eventually gets tangled in a passionate, sensual and torrid adulterous affair with her husband's mysterious and free spirited old friend Johnny Collins. Zandalee and Thierry's marriage has hit a snag and seems to be eroding due to his lack of passion. Zan needs to explore, while Thierry wants to withdraw, and has become more and more distant and impotent in their relationship. He used to be a poet, but now has taken over the familyâs communications business after the death of his father. As time goes on, Thierry has to sell the business and become basically a (vice president) figurehead. He is emotionally adrift as his dreams give way to disillusionment.
Johnny, an artist painter by trade, has been working for Thierry's business to help support his paintings. His only religion is self-gratification. Johnny also sells and mules cocaine for a local drug dealer as another source of income for himself.
Having not seen each other in a while, the two run in to each other at a bachelor's party. After the party, Thierry brings Johnny home to meet Zandalee and his grandmother Tatta (Viveca Lindfors). While talking about old times, Johnny offers to paint a portrait of Thierry at their home.
Later, in another scene, after finishing the painting, Johnny shows it to Thierry, Zandalee and Tatta. While they go off to other rooms and sensing Zandalee's frustration and vulnerability, Collins makes a pass at her. Johnny continues to pursue her and when they run into each other during a rain storm, he takes advantage and moves in by seducing her, first in his loft in an angry passionate scene, (interestingly, Zan's wedding ring is on the table next to the bed) which is followed by him erotically finger painting her. Their sexual liaisons continue to occur in various places including her laundry room a top a washing machine while Thierry and guests are having dinner. Thierry soon suspects the two are having an affair.
As the affair intensifies, Johnny meets Zandalee in Church and asks her to leave her husband. However, Zandalee feels that she must never abandon her true love Thierry, and quickly ends her affair with Johnny after he forces himself on her in the confessional. She and Thierry re-commit themselves to each other, but Johnny, now obsessed with her, will not be brushed off that easily. He tracks them to their vacation spot in the Bayou. All of this puts the three on a destructive collision course with a tragic sequence of events.
When Thierry figures out that Johnny has indeed been having an affair with Zandalee, he becomes drunk and confrontational (he pulls a gun out) leading to him becoming reckless when he takes Zan and Johnny for a speedboat ride on the Bayou, which ends when he falls off the boat and drowns, refusing to be saved by either Zan or Johnny who dive into the water to save him. Both Zandalee and Johnny become distraught by Thierry's death and begin to isolate themselves with Zan jogging for long periods and Johnny trying to work on his paintings, but becoming more self-destructive. In one scene, Johnny, in a rage rips up some of his paintings and pours black paint all over himself. He also consumes some of the cocaine he is supposed to sell, which gets him in trouble with his supplier.
When Johnny meets with Zandalee with the hopes to re-start their romance and have a possible future together now that Thierry is out of the picture, she remains emotionally distant and instead goes for a walk along the Old Quarter with Johnny following her. But in the final scene, when Johnny's drug supplier attempts to kill him in a drive-by shooting outside the church that Zandalee frequents, she sees what is about to happen and shields Johnny, getting fatally shot in the process. The drug dealer flees from the scene of the crime (saying "you've got to make accounts payable man"), leaving behind Johnny, now alone, as he cradles and holds Zandalee's dead body. The movie ends with him walking in front of the church with Zandalee in his arms.

Question: Who is Zandalee having an affair with?
Answer: Johnny Collins