They pda in front of me. its really annoying and uncomfortable. what should i do?

i love my friend and i don't mean to be rude, but i feel its rude to pda in front of me and my man friend. it's really awkward and i feel uncomfortable..so does he. i am unbelievably happy for my friend, but it feels so weird to sit and see this while i am with my man friend. should i say anything? it's really not my business, but really..it's just too much when we're all hanging out then she kisses him. i feel jealous but also i am not like that. it's too much for her to do that. it's sorta like she has no manners and it's a little embaring. i want to say something but idk what? thanks for the answers.