he gives me so much attention and love and refers to me as his "wife" and wants to marry me.. but when I wrote "i love you" on his FB wall..?

so my boyfriend... he refers to me as his 'wife' he begs me all time to marry him, and constantly gives me attention and affection and I never ever question or think there's a problem... UNTIL I wrote on his Wall on FB.... I wrote "I love you" .. or something similar. he DELETED it:( I now feel :( he tells me he doesn't want his FRIENDS to annoy me or hit me up on FB and annoy me... should I be mad? worried? am I asking too much?? he gives me SOOOO much affection.. I just wanted to give some back.. and when It was shut down it really hurt!:( he spoils me with attention.. so... I just wanted him to FEEL my love.. i should worry, right? for him not keeping it on there??:)