Do u think my cat n new rabbit are gona get on?

I've had felix over a year and we r very close and he is very loyal to me and loving. I've had the rabbit about 4 days and already introduced them both whilst the rabbit has been out of the Cage.. Felix has been very close 2 the rabbit with me inbeetween them.. And he hasn't shown any body language that he sees the rabbit as a threat. They seem fine and sometimes felix gets abit confused/scared but there both black and white. Which I fink is cute coz they sort of look alike. Will they be fine if felix hasn't shown any signs ??? Xx