Is it unusual to be 28 and never have been in a relationship?

I’m about to turn 28 and have never been in a relationship. This is frying my mind and making me desperate. I sacred this dude by joking that we can move in together and he blocked me later. I feel this is a failure at my part. Either I’m not attractive enough to date or my personality stinks. I need advice how to deal with this. I feel like I am very new to gayness as I never had many gay friends and didn’t learn how things work in our world.