We've had two cats separated for a couple of months now and we open the doors for a couple of hours every night. The new cat is so scared of the resident cat that she'll cry, howl, wail, moan, growl, and hiss every time resident cat approaches her (resident cat is a male, and they're both adults). How do we help her not be so scared of him? He's not really aggressive or hostile, but he does seem to want to get to know her. He even talks to her in a soft, high-pitched voice that we've never heard him use before. We've already done all the things we're supposed to do like letting them smell each other's bedding stuff and had Comfort Zone plugged in but nothing seemed to have worked. Oh, and both of them are semi-ferals by the way. Any ideas?