theres nothing wrong with liking more than one person at a time

so you may still have feelings for your ex (im batting for that team BIG time at the moment), it doesn't mean to say you can't have fun (also batting for that team, BIG time).

The only time your feelings for someone should stop you persuing another is when you're still too unhappy about things. I'll let you be a judge of when "it still bugs me TOO much" is for you - everyone is different