Spit during sex

So I was having sex with my bf, he was on top, and out of nowhere he spit on my face and then licked it. I was completely shocked since we’ve never done anything like that before. He has licked my face but never spit on me. Shortly afterwards he finished so I know it turned him on but I don’t know if I should feel disrespected. Lately we’ve been going through a rough patch and he won’t open up to me so I just don’t know how to take it. Is this normal?Am I overreacting? Please tell me I’m not the only one to have this happen to them!