Altough Generally You Cannot Catch Hiv From A Kiss On

Altough generally you cannot catch hiv from a kiss on the cheek but am still worried about it. A drug using family member kissed my cheek. There was a lot of saliva and he is generally unclean. I had a small abrasion from squeezing a spot earlier that day. And as I am a worrier anyway I am scared he may have had blood in his saliva. Sorry if this seems like a silly question but would appreciate your opinion