Jaxx the BP has something against a certain rat. (Winken)

Ok, I am stumped now. I had 2 rats I kept in a 10G tank so I would have them on hand for feeding days. Now they were both the same size and same color, both females. I took one which we named Winken out and put it in the feeding tub with Jaxx last month. He did not take it, did not show any interest in it and almost seen afraid of it. A little history on Jaxx, he has never refused a meal and usually has them coiled before they even hit the bottom of the tub. So I took the rat out after 5 mins of him not showing any interest. Waited until the next feeding and tried the same rat again, still no go. Next feeding I put the other rat, Linken in and bam, before it hit the tub he had it coiled. Next feeding night, tried Winken again, still a no go. Now I have this single rat who has been here for a month now. What the hell could be the issue. I read online that Jaxx may not be taking it because it is pregnant, but it doessn't look like it.
I am going to go get a different rat today to give him on his next feeding night because if he doesn't take Winken again, it will be another 10 day stretch between feedings and I don't like making him wait that long to eat.
If anyone has any idea at all why this may be happening please speak up.

I know with my BP's that the size of the rat is the difference. I will feed my spider a weaner and he will eat, and refuse to eat the next feeding day. If I feed him a pup, he will eat with no problem the next time. He is just still "full" I assume?

Just my two cents.