"Pensándote" (Thinking of you) is Arcangel and Nicky Jam stuck on someone who left, and they do not pretend otherwise. It opens with a confession: "Tengo un vicio por ti" (I have an addiction to you). The word vicio is the same one you would use for a bad habit like smoking, so he is admitting this is not healthy, just impossible to quit.
The chorus is pure memory: "recordando todo tu cuerpo, cuando te acostabas en mi pecho" (remembering your whole body, when you used to lie on my chest). Listen for acostabas, the imperfect tense Spanish uses for things that used to happen again and again. That one verb tells you these nights were a routine, not a one-off.
There is fun slang too. "Patinando mal del coco" literally means skating badly in the coconut, and coco is Caribbean slang for your head, so he is saying he is losing his mind. And "Éramos Bonny and Clyde modernos" (We were a modern Bonnie and Clyde) borrows the famous American outlaw couple to say it was the two of them against everyone. The bridge turns into a list of commands you can steal for your own love life: "Cuídame, vélame, abrázame" (Take care of me, watch over me, hug me). A bit much? Sure. That is the point.