What episode does Haley cheat on Nathan?
"One Tree Hill" Running to Stand Still (TV Episode 2008) - IMDb.
Bethany Joy Lenz's singing ability wasn't why she was cast as Haley James in “One Tree Hill.” Yet her vocal talent has become an integral part of the character — even affecting the plot of the teen drama.
Series information
Renee Richardson was a woman who claimed to have slept with Nathan Scott during his first NBA season on the road, despite his marriage to Haley James Scott.
"One Tree Hill" Some You Give Away (TV Episode 2006) - IMDb.
In the end, Nathan and Haley are passionately reunited and spend the rest of the series happily married with their two healthy children.
He fell in love with Lucas's best friend, Haley James; and they married at the end of the first season. Despite various problems in their relationship, the couple remains together married for most of the shows run, and had a son, Jamie, in season four and a daughter, Lydia, in season eight.
Sarah Hyland has had a kidney transplant, which is why she looks different.
Although some of the stars of the 2003 drama chose to date outside the show, others found love on set. When the series first debuted on The WB (later airing on The CW), Sophia Bush began dating costar Chad Michael Murray. On screen, their characters, Brooke Davis and Lucas Scott, entered a relationship as well.
But after One Tree Hill's impressive run, The CW decided to pull the plug after the shortened ninth season. Ratings played a major role in the show's cancellation decision. There was a small increase in viewership with the time jump but, after that, the number gradually decreased year to year.
"One Tree Hill" Weeks Go by Like Days (TV Episode 2010) - IMDb.
Is Nathan the father of Renee's baby?
Baby Richardson was the child of Renee Richardson and unkown father and was concieved after a one-night-stand at a basketball party. Renee originally tried to claim Nathan Scott was the father of her child, wanting money to support her child but it was revealed on television that Nathan wasn't the father.
"Running to Stand Still" is the tenth episode of the fifth season of One Tree Hill and the 98th produced episode of the series.

In the car, Alex accidentally reveals that Haley had sexual intercourse with Dylan (Reid Ewing), and Phil is shocked.
"Arrested" is the seventh episode of the fourth season of the American sitcom Modern Family, and the series' 79th episode overall. It aired November 7, 2012.
Haley and Nathan are walking home happily as they agree they will all be friends, and as they cross the road, Nathan is about to confess about his deal with Daunte, as Haley sees the car coming at him and pushes him out the way. In consequence, Haley is hit by the car and rolls over the top and onto the street.
Details: Brooke and Nathan had a one-night stand while Nathan was in a relationship with Peyton. The pair made a sex tape, which was played at a party during their senior year at Tree Hill High.
Renee originally tried to claim Nathan Scott was the father of her child, wanting money to support her child but it was revealed on television that Nathan wasn't the father.
"The Hero Dies in This One" is the thirteenth episode of the second season of One Tree Hill and the 35th produced episode of the series. It was broadcasted on February 8, 2005.
First Day on a Brand New Planet.
You've Dug Your Own Grave, Now Lie in It.
Does Haley cheat on Nathan with Chris?
Haley almost came and kissed Chris once again but realized she couldn't leave Nathan. Chris later returned to Tree Hill and finally went on tour with Haley but this time there were no romantic feelings between the two, although they had to pretend that they were in a relationship.
"I And Love And You" is the seventh episode of the seventh season of One Tree Hill and the 137th produced episode of the series. It was broadcast on October 26, 2009. Dan brings Renee onto his television show, leaving Nathan and Haley powerless to stop him from revealing the truth of her pregnancy to the world.