Sospechaba means "I suspected" and is the imperfect past tense of the verb sospechar.
Frankie Ruiz sings, "sospechaba terminar así" (I suspected it would end like this), realizing he was merely a rebound used to make another man jealous. This makes it a fantastic word for learners to see how the imperfect tense is used to describe a lingering intuition or ongoing feeling in the past.
Frankie Ruiz lays out one of salsa's most honest confessions of being the rebound guy. While the beat invites you to dance, the story is pure bittersweet realization. Frankie looks at his ex living happily with her partner—repeating the sharp chorus hook "Tú con él" ("You with him")—and admits he finally sees the truth. He realizes he was never the end goal; he was just a tool to make her old flame jealous: "Yo solamente fui la excusa para hacerle ver que tú podías si querías vivir sin su amor" ("I was only the excuse to make him see that you could live without his love if you wanted to").
The real sting comes from how defenseless he was during the whole scheme. He sings, "No me di cuenta de ese juego y me enamoré" ("I didn't realize it was a game and I fell in love"). While she played chess with her ex's feelings, Frankie caught real feelings and ended up genuinely heartbroken. He even apologizes for his past jealousy ("aquellos celos tan intensos"), admitting he was crazy about her before losing her for good. Yet, there is zero bitterness left. He takes comfort in the little things—like hearing she asks about him and looks prettier than ever—wrapping up his lesson with the classic romantic shrug: in the game of love, people come and go.