After you begin connecting with someone on JDate there’s a balance of power that shifts continuously. Who wrote the last email? Who sent the last text? Who made the last phone call? It’s all part of the game… and it sucks, but you’ve got to play ball. If you were the last one at bat (emailing, texting or calling), then give the other person a chance to hit (contact you).
Enough with the symbolism… if you take a step a back and realize that you’re doing most of the contacting, planning, talking, following up, and so on, then perhaps the other person is not so into you. It’s tough to admit, but they may just be bored and have nothing else to do, and you’re such not bad company to pass the time. Sorry.
To borrow a well-known line… if he or she is not contacting you, then they’re just not into you.