Kissing with a potential cold sore?

I am very confused about a thing on my lower INNER lip. I had bad allergies last week and my lips got so chapped they cracked really bad and this week I've had a type of ulcer on the inside of my lip almost to the inside of my mouth. It's been scabbing over all week, and is slowly healing, but my fianc� is coming to see me tomorrow and he is going to want to kiss me, but I am slight concerned it might be a cold sore. I am perfectly fine not having any sort of ual contact while this is going on, but not being able to kiss him I worry will hurt him. We've been together 2 years, and I've never had this before that I can remember, but if this was a cold sore, and he was genuinely HSV-1 negative, would I have transmitted it to him before now? Also, my dentist told me last summer that cold sores cannot happen on the soft pallet and I think that is the part of my mouth. just looking for people's opinions. I don't want to make him sick, but I also don't want to deeply offend him.