Fear of being lonely is normal. You’ve only been single for 3 months and you’re probably missing whoever you were with before. You need to internalize the phrase “Another bus arrives every 15 mins.”  It is an analogy that dating is never over because of one person, just like missing one bus doesn’t mean you’ll never reach your destination. You don’t know when the next person will arrive, but trust that they will. This person, however, definitely ain’t it.