Have you ever met someone and had the feeling you've known them all your life or at least had met before?
More than likely your boyfriend's Dad is part of your Soul family. Soul families tend to reincarnate together in each life time to assist one another with their life lessons and experiences. Sometimes one soul will leave before another (such as yourself in the case) has a chance to be apart of the other's earth life. Perhaps in this lifetime you did not need each others direct help. But, more so you have choosen his son in this lifetime for assistance or to resolve karma. I sense a very strong connection to your soul family on earth and the otherside. Are you feeling a bit left out? You shouldn't the soul knows what is best and goes with it. You'll see him again when it's time. I believe he has been your dad more than once on earth. I hope this helps.
God Bless
Love and Light Always,
Libra