good idea to make it personal. spells you find should be a guide, if something feels off about an item or chant, change it to suit you.
you shouldn't worry about it, honey does that, place it in some warm water and it'll go right back to normal. if you do want to interpret it as a sign, it's probably positive, since you two are hanging out more, and he's being nice to you, then it's solidifying your feelings for each other. but, myself, it's just honey being honey.
sorry to hear you're ill, try hot honey and lemon [if it's a cold] works wonders on soar throats. since you seem to think about the jar enough, it's fine, you're charging it without knowing. i keep my magic tools by my bed, and that charges them with energy.