I hate weed now

So I have been with my fiancee since I was 17. And we went through the party stage now we are 23 and 24 (hes 24). Has barely held his own ever, we have 3 beautiful children. Weed is a huge issue for us, others can be just fine and I get that. With us its a different story, he looses ambition and cant get a job we live in ky its illegal. He has his cdl but can't use it hes not clean. I give up I have lost faith in him. He wont do what he needs to I feel. Its been going on forever. He doesn't help parent when hes high, doesnt work honestly a liability. I have done everything providing homes etc... hes stolen money to go get weed in the past out of my money I am going back to work, focusing on myself, my children, and school for nursing. I dont have anymore options. I told myself when my second daughter was born this will not continue that my kids come first and this is something they should not be exposed too. Im so upset I had put trust and faith in someone who has done nothing but let me down. Just I dont know why, I know I am a strong independent woman but it doesnt make this less harder than it is...