i don't know if those feelings change. i think things are different for everyone. lots of varying factors.
maybe you talk with therapist about why you are scared to talk with AH about your feelings about this. you certainly do not have to make any decisions right now. take your time.
the reason i mentioned dating (i assumed you probably don't want to go there), is that if you do stay separated longer, writing it down or making some sort of agreement about dating protects you, if you don't want him to do that. NOT THAT HE WOULD. i have seen MANY men date when they are separated and the wife thinks that they are just not living together, but the man thinks she isn't here, i have needs...