make him fall in love with me

I’ve been with my boyfriend for almost 5 months..we have been taking everything slow..and it is working out for us..
I only see him about once a week because i have school and he runs his own business and lives an hour away..
It is like so obvious how we feel about each other..We always let each other know..and we are forever telling each other how much we are missing each other..
so everything seems great..except for the one thing that’s missing..the ‘i love you’..I thought after 5 months we would definatly be saying it..because I do absolutely adore him..
So the other night when i saw him we were talking about who my perfect guy is and i simply said ‘you’ he went all quiet and i asked him if there was something he wanted to say and he replied ‘i love you..?’ and i was like ‘what..i love you?!’ and then he said in a weird tone ‘fuucckk off! laugh i don’t love you’...it hurt…but then later he said how he was falling for me..
so now i’m determined to make him fall so fast and hard that he won’t know what hit him! any sugguestions how i can make this happen?!
opinions & advise are much appreciated!