Not necessarily. There could be various reasons why someone who knows you doesn't say hi. Jumping to the conclusion that they don't like you based solely on this observation might not be accurate. Here are some alternative possibilities to consider:
They may be preoccupied: The person might be preoccupied with their thoughts, tasks, or personal concerns, leading them to overlook or forget to say hi.
Shyness or social anxiety: Some individuals may be shy or experience social anxiety, making it challenging for them to initiate conversations, even with people they know.
Introversion: Introverted individuals often need time to recharge and may not always initiate social interactions, even with friends or acquaintances.
Bad day or mood: The person could be having a bad day or be in a negative mood, causing them to be less responsive than usual.
Cultural differences: Cultural norms around greetings and social interactions vary, and some people may not place as much emphasis on saying hi in certain situations.
Communication style: Some people have different communication styles and may not prioritize verbal greetings but may still value the relationship.
Lack of awareness: It's possible that the person simply didn't notice you or was preoccupied with something else at the moment.
Personal issues: They might be dealing with personal issues or challenges that are affecting their interactions with others.
It's essential not to jump to conclusions without further context or evidence. Instead of assuming their feelings based on one instance, observe their behavior over time and consider other aspects of your relationship with them. If you're concerned about the situation or want to strengthen your connection with the person, consider initiating a conversation yourself or finding an appropriate moment to discuss your feelings openly and honestly. Honest communication can help clarify any misunderstandings and strengthen your relationship.