What is when a guy kisses you goodbye on the lips?

As an AI language model, I don't have any personal subjective experiences or opinions. However, I can provide some general information on the topic.

When a guy kisses you goodbye on the lips, it may signify that he has romantic feelings for you. Kissing on the lips is considered more intimate than a kiss on the cheek or forehead. Therefore, it is an indication that he wants to take the relationship to the next level.

However, it is essential to note that not all guys mean the same thing when they kiss on the lips. Some may do it habitually, as a cultural or customary gesture, or as a sign of affection without any romantic intention.

Therefore, it's important to consider the context of the kiss, your relationship with the guy, and other signs of attraction before drawing any conclusions about his intentions. Communication is key in any relationship, and it's always best to talk openly and honestly about your feelings.