Am I being bitter or reading to much into things?

This is just one of the many events why I feel im always alone. Todays my bday and nobody remembered. So I treated myself to a blue coconut lemon berry slush and dranked it at a park in the car on my lunch break. But every year its the same. Me going to a fast food joint and eating it alone in my car. Also Im everyones friend any body can call and im there very supportive, cooperative, and understanding. But when it comes to me needing someone no ones in sight. Its not just the bdays but should I feel alone or is it just me?