It's no one's responsibility to entice you, it's yours. And sometimes there will be days or weeks where nothing is of interest to you but it shouldn't stop you from trying. If you can't find anything you like, make something yourself and stick to it. Or make it a habit to come online even for just ten minutes a day, after two weeks it should become more natural and you should find it easier to stop things you like, rather than just everything you don't. Try something new, break out of your comfort zone, network with people, but all of this is on you. Hopefully something clicks for you and gives you a reason to stick around.

EDIT - The last thing you should do is raise your hand for a RP if you really aren't into it. If you're not, figure out why and fix it. The last thing people want is someone who has a record of bailing (be it on accident or not). So be mindful of others, should you suddenly change your mind about committing to a RP. :3