Most Helpful Guy
I've literally been the guy in that situation to an eerily similar degree (was thoughtful for my ex, traveled 2 hours to see her, and started dating another girl 2 weeks after the breakup). Truth is, you were just the first in line and he picked you because well you were available and interested in him. Sorry to burst your bubble, but it's true. Guessing he was resistant on being in a relationship as well.
Most Helpful Girl
If he's done so many things for her it means she really was something special to him and he loved her.
If they just broke up there is no way for him to be ready to start a new relationship with you. You might be his distraction to get over her but nothing more that is also why he's not putting in much effort.
What you should do is step out and let him know it's for his own good. He needs to first finish what he's started and get over it. After that he might be emotionally available but for now you're just a backup plan. He might like you but his mind is still with her. He's never going to develop feeling for you that way so give him a time to recover then come back around and see how it goes.
If you stay in this trap, chances are she may come back around and he may leave you for her anytime because she's still his number one.