Hi @Spiv1803 , perhaps when your partner is sober you could give him the telephone numbers to both BCNA helpline 1800 500 258 (Tues & Thur to 9pm) or Cancer Council 131120 (on a bit of paper he can carry with him) and let him know that if he needs to talk to someone about his fears for your well being and your life together, that there is help for him too.
If his drinking has escalated since your diagnosis can you voice your concern to him about this? Perhaps even try and work on a different type of social outing that the two of you can occasionally enjoy together - perhaps something like golf? Hope it improves for you. Xx Cath