What happened to them in the last episode of Love Apartment 3? Who can elaborate?

After playing the game for half a day, Xiaoxian and Zi Qiao, who were idle, fell asleep in their chairs. When Xiaoxian woke up from her dream, the game had reached the point of deciding game, and she flew ahead. Nolan accidentally sprained his foot at the crucial moment and won the game by flying. Xiaoxian returned to love with Nolan, leaving only Yifei standing alone on the tennis court.

Xiaoxian also returned to the apartment when Nolan was injured. After Xiaoxian helped Nolan deal with his injured foot simply, Nolan took advantage of Xiaoxian's opportunity to cover himself with clothes and gave him a kiss to express his affection for Xiaoxian. After a few seconds, Xiaoxian realized what had happened and immediately panicked. Fortunately, Xiaoxian calmed down a little in his own unique way, and then stumbled out of the apartment on the grounds of buying safflower oil.

No sooner had Xiaoxian walked out of Room 3602 than she received a phone call from Zi Qiao. She told Xiaoxian that Yifei had sprained her ankle and the only bottle of safflower oil was in the second drawer on the left hand side of the toilet. Zi Qiao warned Xiaoxian to seize this rare opportunity to get close to Yifei tonight, and then hung up the phone. In this way, Ceng Laoshi once again faces a choice, Philippine or Nolan? Ceng Laoshi decided to make a decision by flipping a coin, so Ceng Laoshi's last choice was ......