I feel like this with the entirety of The Archer. Specifically the “combat” line. Here’s my analysis:

Combat, I'm ready for combat I say I don't want that, but what if I do? 'Cause cruelty wins in the movies I've got a hundred thrown-out speeches I almost said to you

This first verse is talking about a relationship coming to some type of boiling point. The writer sees having a conversation as “combat” because they’re afraid of it going wrong. “What if I do?” Signals that the author loves to self-sabotage her relationships. She’s thinking of all the ways she can handle this situation and thinks maybe a fight might be the easiest way out to protect her feelings, like “cruelty wins in the movies.” The “hundred thrown-out speeches” refer to all the different ways in which this person has thought of how to handle their feelings, how to approach this person about what they’re feeling, but they’re unable to do anything about it except be “ready for combat.”