Repairing a friendship​?

So I talked with a girl from school for a while. We got along fairly well, albeit we were starkly different from each other. I wasn't a very religious person, and she was. It got to the point where there was some nasty conflict and we ended up shutting each other out.

I got a message from her asking to meet for coffee tomorrow, and yet I feel a little uneasy, even though I've done my best to put the things she said to me and the things I said behind.

I'm not sure if I want to be friends, but I also don't want to hold a grudge. I really want to try again, but sometimes, I get this strange sense of apathy towards her.

Any suggestions? I'm stumped.