I kinda made a new friend online and they are starting to get annoying?

[elizabeth]

I was on a social networking site and this guy Jake started talking to me he seemed kinda funny. A week later i decided to delete my account and asked him if i can add him on facebook so i added him. He had been talking to me everyday for a week my boyfriend added him to get to know him too I was fine with that. Jake started annoying me always asking me quiestions,saying i deserve better than my boyfriend when there is nothing bad about him,keeps telling me i'm one of the prettiest girls he ever seen I feel uncomfortable cause i'm in a serious relationship wiith my boyfriend and we love eachother so much. He always goes on saying my bfs lucky and stuff to have me and he had been talking to him copying and pasting love quotes and sending them to him telling him to say it to me. It started to annoy him cause he tells me how he feels about me in his own honest words. For past few days i had been feeling like i dont want to talk to jake and cant be bothered talking to him. I read his message yesterday and didnt reply and he messages me next morning. My bf and I find him annoying. Should I block him? He doesn't have my number just my facebook and nothing else.