Is It OK To Transfer Colleges Because A Friend Did?

I am currently a second semester college sophomore and it has been… an emotional rollercoaster to say the least. My first year was not super eventful but was alright. Then, last semester, one of my close friends from high school started attending my school for the same major as me and ended up joining the same fraternity as me. This experience made us become very close, and he quickly became my closest friend at my school. Toward the end of the semester, he decided to leave our school because he was unhappy when the university informed us that our major would be getting cut after we graduate. While I don’t picture myself transferring to the school my friend is planning on attending in the fall, I often think about transferring to a different school because things at my school just haven’t felt right since my friend left. I often feel like I’m missing something or that I don’t belong, but another part of me feels that I need to just hang in there because it’s often seen as unwise to make life decisions based on someone else’s presence. Can anyone give me advice on what to do about this situation?