My partner binges with drink and cocaine too – it’s horrendous – the sesh we call it and sometimes he never turns up back home (we live together).
If he is ever sober and you feel you can talk to him, why don’t you try? Maybe just politely put across your outlook on things and how it does actually effect you. I appreciate with drug and drink users, you almost have to be more careful in explaining yourself. But maybe just state that being honest is so very important.
I hope he sends you something lovely at least for Valentine’s Day!