beta
Explanation
This comic is a play on the insult "beta male." In the first panel, one man calls another a "betta male, bro." The recipient asks for clarification: did he say "beta" as in secondary/inferior, or "betta" as in the tropical fish (Betta splendens, also known as Siamese fighting fish)?
In the next panel, the man who was called a "betta male" looks at a betta fish admiringly and says, "I think you are beautiful, yet dangerous." The final panel shows the romantic payoff -- the "betta male" interpretation leads to an actual romantic kiss, implying that being compared to a beautiful, dangerous fish is actually quite flattering.
The joke works on the double meaning: the insult "beta male" (from the debunked alpha/beta wolf hierarchy popular in certain online subcultures) is reinterpreted as "betta male," turning a put-down into an unexpectedly poetic compliment about being beautiful and dangerous like a fighting fish.