The first step to improving communication is to acknowledge and accept your differences. It is true that your disk formats are very dissimilar, but both of you have worked to resolve this problem through software and hardware.
Mac, your Superdrive hardware and Apple File Exchange and PC Exchange software, which come standard on all new Macintoshes, allows you to read and write files to and from PC's disks. You can even format floppies to PC's specifications. PC, you can use programs such as Macette to do likewise.
And there are other ways as well...networks and modems can help you overcome your disk formatting problems. Sending files to each other over CompuServe bypasses floppy disks entirely. Of course, just because you can successfully transfer files doesn't mean you can read or use them, but we'll save that for our next session.