Google Ai [ GEMINI ] Translation Breakdown

あんた (Anta) You (A very casual and familiar, sometimes slightly rude, way to say "you").

ってさ (tte sa) A very casual filler particle used to quote or introduce a topic, like "you know," or "I mean.

思いは (Omoi wa) Feelings/thoughts/emotions (The particle wa emphasizes the topic: "Regarding my feelings...")

最初 (Saisho) At first or the beginning.

割と (Warito) Relatively or kind of 変 (Hen) Strange, weird, or odd

忘れないわ (Wasurerodate Wasurenai wa) I won't forget.

In simpler terms, the speaker is reflecting on how they initially saw the person as "a bit strange" but is concluding the statement with a firm, emotional promise that they will hold on to that memory of them.