This was a very interesting question. First of all, we need to make one thing clear: everyone's feelings are independent. We can't say for sure that one person is only good to another person. Therefore, I can't say for sure that this girl only feels good about me. However, we can discuss some of the possible reasons for this. The following are some possible reasons: Our feelings are limited: everyone has their own feelings and preferences, but we can only have strong feelings for a limited number of people or things. This girl may be friendly to me, but that doesn't mean she has any other feelings for me. 2. Our social experience: If we haven't been together for a long time, we might not have much feelings for other people. This could be because I didn't know her well enough or because we didn't have enough social experience. 3. Our personal bias: Sometimes we may have the wrong impression of others because of our own bias or prejudice. This might be because I have some inherent prejudice against her, such as she might not be my type or she might have some qualities that I don't like. To sum up, we can't say for sure that this girl is only good to me, but we can't rule out the possibility of this happening. The most important thing is that we should respect each other's feelings and personalities and establish in-depth communication and communication with each other to understand each other.