I appreciate your feeling nervous about rejection, but if you can find a different way to look at rejection, you won’t be nervous. Let me see if I can help you with that. Relationships involve 2 people — not just yourself, so in order for them to go well, both people have to like each other enough to want a second date, etc. If this guy doesn’t want a second date with you, then he’s doing you a favor by conveying that message. That way you won’t waste your time with someone who’s not interested in you.
I know that it’s disappointing to not get what you want, but that’s life — especially when you’re dating. It’s great that you like this guy enough to want a second date, but in order for you to get a second date, he has to want one enough to call you and schedule one. If he doesn’t do that, he doesn’t want what you want.
Dating is a numbers game. The more you know what you want, the more likely you’re able to find that in someone else, and the only way to know if you’ve found that is to put yourself out there in the dating world. If a fear of rejection stops you from dating, then you’re really limiting yourself.
So here’s what you do: Don’t call this guy again or go after him online. You’ve made it really clear that you like him enough to date him again. Now the ball’s in his court. But don’t wait by the phone — put yourself out there, and play the field until you’ve finally found someone who wants you as much as you want them, and is willing to walk the walk to make you his.