Have a problem, /adv/.

See, when I go out and see a cute girl, it's like a get a crush on em, but I don't actually really want a girlfriend right now. Then, I get depressed for some reason.

Like, I'm sad for some reason that I didn't do anything about it, like get her number. I know I could have (she was mirin) but I just don't feel like having a girl. Why do I feel like this?