Title text: I'll never forget you--at least, the parts of you that were important red flags.
Here, Cueball is mulling over a previous relationship in which he had something so special, he will never have something that special with anyone else. Usually when someone says something like “I will never have with anyone what I had with you” it implies that the couple had something special and great that could never be replaced. But in the third panel he says “Thank God,” implying that the relationship was so horrible he’s thankful he’ll never have to experience it again. The same thing happens in the title text: “I’ll never forget you” is usually a positive sentiment–but then he explains that he’ll never forget the aspects of his partner that were red flags, so he doesn’t fall into the trap of having a similar relationship again.
"Red Flags" is a phrase used to describe problems or warnings about the person that they would not be a good fit for a serious relationship or marriage. Red flags include (depending on the person) no job, history of cheating or violence, etc.
- [Cueball staring into a pond]
- Cueball: I know that no matter where i go or who I build a life with
- Cueball: I will never have with anyone what I had with you.
- [Cueball walks off]
- Cueball: Thank god.