Henley appeared on the July 25, 2018 episode of NXT under the name Tenilla Price, losing to Lacey Evans. On August 8, now under the name Tesha Price, she lost to Britt Baker in a dark match held during the second annual Mae Young Classic.
She returned to WWE in 2021, under the name of Fallon Henley, in NXT, during Joe Gacy’s invitation, and faced Gacy that night, before being interrupted by the Diamond Mine. Throughout the remainder of late 2021 and into early 2022, Henley competed on 205 Live and NXT 2.0 in losing efforts against the likes of Ivy Nile, Tiffany Stratton and Lash Legend. As 2022 went along, Henley's backstory was explained as a country girl who worked at her family's bar to pay for her wrestling training, and developed a friendship with Josh Briggs and Brooks Jensen. Henley began feuding with Kiana James, who was looking to buy the Henley family bar and redevelop the land for condos. But as James began a relationship with Jensen, she and Henley developed a grudging respect and formed a team.
At NXT Vengeance Day on February 4, 2023, Henley and James defeated Katana Chance and Kayden Carter to win the NXT Women's Tag Team Championships, the first title in her career. On April 1, at Stand and Deliver, they lost the tag titles to Alba Fyre and Isla Dawn. Henley and James tried to regain their titles against Dawn and Fyre soon thereafter, but were unsuccessful. After discovering that James was cheating on Jensen, Fallon parted ways with James but Jensen choose to stay with Kiana. However on April 25 at Spring Breakin', Henley and Briggs beat James and Jensen, which caused James to finally admit to Jensen that she never actually loved him and break up with him, causing Jensen to reunite with Henley and Briggs.
On the May 16 episode of NXT, Henley was defeated in the first round of the NXT Women's Championship tournament by Cora Jade. On the December 5 episode of NXT, Henley gained the final spot in the women's Iron Survivor Challenge after winning a last chance fatal four-way match between her, Kiana James, Roxanne Perez and Thea Hail. During the Iron Survivor Challenge match at Deadline, Henley was unsuccessful as the match was won by Blair Davenport. On the January 2, 2024 episode of NXT, during New Year's Evil, Henley defeated Tiffany Stratton, forcing Stratton to become her ranch hand for a day. At NXT Stand and Deliver on April 6, Henley teamed up with Kelani Jordan and Chase University's Thea Hail to defeat Jacy Jayne, Kiana James, and Izzi Dame in a six-woman tag team match. On night two of Spring Breakin', Henley turned heel for the first time in her career by attacking Thea Hail following her victory over Jayne. On the May 21 episode of NXT, Henley defeated Hail to qualify for a spot in a ladder match to determine the first NXT Women's North American Champion at NXT Battleground, which she would go on to lose. On the July 9 episode of NXT, Henley, who took issue with rookies getting more opportunities on the brand, formed and alliance with Jacy Jayne and Jazmyn Nyx, eventually calling themselves Fatal Influence. The trio teamed up for the first time during week one of The Great American Bash on July 30, where they defeated Karmen Petrovic, Lola Vice and Sol Ruca in a six-woman tag team match. At NXT Halloween Havoc on October 27, Kelani Jordan faced Fatal Influence in a gauntlet match for the NXT Women's North American Championship. Henley defeated Jordan to win the title as the third person in the gauntlet after interference from Jayne and Nyx, winning her first singles championship. On the November 26 episode of NXT, Henley defended her title against Tatum Paxley, after which she, along with Jacy Jayne and Jazmyn Nyx, would deliver a beatdown to Paxley until Gigi Dolin came down to even the odds, thus starting a feud with Paxley and Dolin (after which Shotzi would align with Paxley and Dolin a week later). The two teams would face off at NXT New Year's Evil, with Fatal Influence coming out on the losing end.