I can't offer much help that others haven't said already with regards to your partner. tbh I'm in a very similar situation where my partner plays games/drinks to cope and I sometimes feel my needs are not met. I am working at acknowledging that and respectfully asking for what I need.
However:
please be respectful, i don't need a rant on how much i suck as a bf, i'm really trying to figure out what to do to help.
Please, please don't blame yourself or think you're a bad bf for asking for help. I don't know how you are in the relationship but the fact that you're worried and want to get help shows that you're invested and care about your partner. There is nothing wrong with that and I'm sure (unless you're abusive or something) that you are a totally awesome bf and your partner is just going through some shit. Do not take his shit personally. His choices are his alone and do not reflect on you as a person or as a boyfriend. I'm sure you are wonderful!