confused

i don't think i love my husband anymore. weve been together for 9 1/2 years, i was 18 when we got together. hes changed the past few years. he got a dui in 2016 and ever since then he hasnt been the same person. hes always negative. i feel like we just go through the motions of life. i keep thinking things will get better but they dont. i just dont know what to do anymore.