If love is from God then why?

My boyfriend doesnt believe in God, he's not even baptised. How do we keep on planning our life together if we dont agree on such an important part of life? We do love each other.Its hard for me because its mostly my dad who"s hates other religions and doesnt accept other religions. My boyfriend is Buddhist but doesnt really follow his religion.I am Catholic, If God sees that we love each other, can he forgive me for planning my life with non believer? I am very confused. If love is from God then why did he let me fall in love with a non believer?