Here are some key episodes that highlight their relationship:
* Episode 4 (FMA 2003) & Episode 3 (FMA: Brotherhood): Both series start with Edward rushing to Winry's house to fix his arm and leg, highlighting their deep connection and reliance on each other.
* Episode 19 (FMA 2003) & Episode 17 (FMA: Brotherhood): Edward confesses his feelings for Winry during the Ishvalan Civil War.
* Episode 51 (FMA 2003): Edward returns to Resembool after the war, and while their relationship isn't explicitly stated, it's implied that they are together.
* Episode 64 (FMA: Brotherhood): This episode depicts their relationship in a more mature and open light, emphasizing their shared understanding and support for each other.
Ultimately, the nature of their relationship is more nuanced than a single episode can depict. It's best to consider the series as a whole to fully understand their journey and the deep bond they share.