Implosioné is a dramatic and unusual word to find in a pop song, creating a powerful image of being completely overwhelmed by emotion. It's the past tense of the verb implosionar (to implode).
In "Mon Amour", the singer uses this hyperbole to describe the intense feeling of falling in love. Right after saying, "Paso de 0 a 100" (I go from 0 to 100), he adds "contigo implosioné" (with you, I imploded) to show how his world was instantly consumed by this new love, like an explosion directed inwards.
This song is a super fun and over-the-top declaration of love! Zzoilo is so crazy about someone that he doesn't care if it's early in the morning, he just wants to shout about it. He sings, "Son las seis de la mañana y me da igual / Voy a salir a la calle, voy a ponerme a gritar" (It's six in the morning and I don't care / I'm going to go out on the street and start screaming). It's all about that initial rush of a huge crush, where you feel a bit silly and act like a kid, asking them out and "esperando un 'sí', esperando un kiss" (hoping for a 'yes', hoping for a kiss).
Aitana joins in and shows the feeling is completely mutual. She imagines him in the crowd at her concerts and thinks of him while doing everyday things. The song is full of these sweet and slightly exaggerated comparisons, like when Zzoilo says he likes her more than the smell of coffee in the morning! They sing about how being together feels better than having money and makes them feel like they're on top of the Eiffel Tower. It's a playful, energetic song about being so into someone that you want to tell the whole world, in any language you can.