Walaikum Asalaam
@
Krkr
,
He does not pray and therefore he is not a God-fearing man. This should be his #1 priority for himself. When refusing to pray and also refusing to teach you, this alone puts him in a state of kufr and is grounds for divorce. Scholars even say that not praying actually annuls your marriage and you should no longer share a bed together. See here:
https://islamqa.info/en/6257
I suggest going and speaking to a local scholar about your problems to find a solution. May Allah replace what you're dealing with with something much better.
Also if you really want to learn how to pray, stick around. I'll teach you :)