How do you cope with being single for all your life?

I knowwwww it's a loser ahh question. These days I can't even read Our Sunny Days without being envious as fuck, or any romance manga at that. I'm not that ugly, I'm hygienic, but I feel so unlovable with everyone having a boyfriend these days. It's such a childish thing to whine about, but it feels a bit too lonely sometimes you know? You can't help but wonder if something's wrong with you. ╥﹏╥