Weird theory that I think makes sense

Sooo...

The final Japanese ending theme of Pokemon: Diamond & Pearl was Kimi no Mune ni La La La
And the ending theme of Zoroark: Master of Illusions is Ice Cream Syndrome

The first is sung from the perspective of a girl talking about her feelings for someone that supports her through her ups and downs, with really un-subtle lyrics like "I love you because you work hard" (Bulbapedia translates it to 'like' but when you translate it word-by-word and put it in perspective of the sentence, the meaning turns out to be 'love' indeed) and stuff like "The voice I hear when I feel crushed", the title of the song itself is "In your heart la la la"

Ice cream Syndrome is from the perspective of a guy, who decides to hide his feelings that are blooming towards his (presumed) best friend, with some surprisingly deep lyrics like "I hope that you look close enough that I could reach my hands to you" and "the syndrome called "friendship" is a perpetual labyrinth without exit". And one really sad one too lol "We've been acting it out for so many years, casted as best friends, the distant feeling is okay but it would be tough if I could say my true intents"

So, a popular theory suggests that 'In Your Heart, LaLaLa' is from Dawn's perspective while 'Ice Cream Syndrome' is from Ash's as a reply! Reaching, but I think it makes sense, here's why:

In Your Heart, LaLaLa is almost confirmed to be from Dawn's side due to the accompanying animation and her actions lining up with lyrics almost perfectly, this ending theme debuted in DP183
AND GUESS WHAT?! The Zoroark movie (whose ending theme is Ice Cream Syndrome) was released immediately after DP183!! Betweem DP183 & DP 184, which could definitely serve as a hint that the latter is a reply to the former!!!

The other thing is a similarity I noticed in both, they are both set in summer. Too common or could just be a coincidence? But WAIT, because both songs mention a 'heat haze' in the following lyrics:
In Your Heart, LaLaLa: "On the other side of the swaying heat haze, your dazzling smile, just like that..."
Ice Cream Syndrome: "I'm just a blockhead standing awkwardly amidst the heat haze, even in this blurred world, only you remain without distortion"

This literally implies both the people in the song in the same situation at the same time, since the guy says only 'you' remain without distortion, it means he's able to see her clearly and is apparently smiling at 'her' while she sees 'his' dazzling smile on the other sideof the heat haze!!!!!!

WITH HIM AND HER BEING ASH AND DAWN RESPECTIVELY!!!!!

Thank you for reading all this, though Ash's story is over, this is something I've pondered over for years now and finally decided to share it with the world because this is such important information lol