Suddenly this song came into my mind and making me feel more sad. How is it in your opinion?

All of a sudden out of nowhere as soon as I woke up, this song was playing in my mind. This is a 2004 song but I think I heard this somewhere in 2010 or 2011. Its a love song and after hearing this my quarter life crisis increased. Because I turned 22 just over 3 weeks ago and yesterday went to college to write exam and while going to college and coming home, I saw so many college age guys and girls hanging out with each other and that made me sad yesterday as I will be graduating college after few months and still no girlfriend and I am completely single and lonely. It just kills me inside when I see couples or even just guys and girls hanging out who looks in the 18-25 and late 20s age range. I feel like I missed out on young college love and I never even simply hanged out with girls so far. Even the girls with whom I chat on Instagram and dating apps are ghosting me and idk why. I am feeling really old at just 22. People including here say I look younger but mentally I am feeling really old and lonely.
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