Remember in the love by Ash & May

AdvanceShipping is the belief that Ash Ketchum and May are a couple in the anime. This Ship is among the most popular of those based in the anime, along with PokéShipping, ContestShipping, and PearlShipping. This Ship is considered by some to be similar to ApprenticeShipping, with Ash in the role of the tutor and May as the student. May joins up with Ash, Brock, and Dawn in Sinnoh. Later that day, in the evening, Ash and May both pull out their halves of the ribbon that they tied for, and hold the pieces together. May also says how the ribbon reminds her of Ash's encouragement, and how it has saved her numerous times in Johto.

Before May leaves to return to Johto, she and the rest of the group share goodbyes. She and Ash speak last, each telling the other to do their best in their respective paths. It is only when May is speaking with Ash (despite the fact she was exchanging farewells with everyone) that she holds her heart. Further indication is that when both May and Ash say their goodbyes, each of their eyes glimmer. In the anime, when a character's eyes glimmer it represents a type of passion. She comes back to be reunited with Ash on Unova region in the future episode of the next season from Pokemon: Black and White 2 (Pokemon: Best Wishes 2).