aureumalchemist I've been thinking about this and I don't think Dracula ever fed on Jonathan. He certainly had every opportunity to at the beginning of the novel, but Jonathan never exhibited any of the symptoms that Lucy nor Mina did after being fed upon. Jonathan's torture was all psychological.
It's left ambiguous! My position is that he did given Dracula's line that "tonight is mine", and Jonathan finding him full of fresh blood not much later. We know victims can fail to realize they're being fed on, and there are a lot of gaps in Jonathan's diary.
It's true that he doesn't show the symptoms Lucy and Mina did. However, a) they became symptomatic after being fed on multiple times; Jonathan probably got drained once and b) not long after the bite, he spends 2 weeks in a religious hospital getting horribly sick. My favorite interpretation of this - although it was probably not Stoker's intention - is that this functioned basically like a post-exposure rabies shot. He was so sick because the vampirism was getting burned out of him before it had fully taken root. But... he's not quite normal afterward, is he? He climbs down a 1000 foot cliff with his bare hands. He demonstrates instant hair color changes (rarely discussed Dracula power.) He's fast enough to very nearly get Dracula with a knife in London. He can lift a coffin with a man inside easily. Regular Romanians and Dracula's assistants cower from him specifically, like they know something we don't. I think perhaps he got stuck halfway.
















