I really feel I'll always love him
That is probably true. However, please remember the 'him' you love IS GONE. The 'him' has been changed forever by his addiction. Will he ever become that 'him' again? It's doubtful.
With lots of HARD WORK on his part, you may see some bits and pieces some day.
J M H O based on my own recovery of many years and working with others for many years.
Love and hugs,