I'm back and still not pregnant

So is been 4 years and I already got check 2 years in a row and got done painful test on me and all doctors say I'm perfectly healthy and ready to conceive , over a year ego I discovered that my bf is an alcoholic, he hide it very well the first 2.5 years due to our different work schedule, when I change job and we were both at home at night I noticed that it wasn't normal for someone to drink a littler of vodcka per night , he had been saying for the last 7 month that he is going to get his sperm test it like his doctor recommended but he keep putting excuse over excuse and saying that is very embarrassing for him , his sex drive is very low , he is also suffering from depression and bipolar issue do tonthe drinking problem do you guys know if anyone could become infertil because alcoholism? Thank you for reading and please advice , I'm about to leave and live my life. I help him a lot but sometime I feel like is too much.