Partner having trouble with intentional time with God

Some background:
My partner (M24) and I (F24), have been together for almost two years. We were friends for a while before being together, then dated for a few months and since before we dated we were speaking about dating for marriage. However, I got kicked out of a very toxic environment and my only option was to stay with him. After a few months of living together, he proposed because we always intended to honor God with our relationship. Although living together was supposed to be temporary it now became permanent although we haven’t been married yet. He said he wanted to do another proposal, the one of my dreams (with my family present, the ring he ordered when we first started dating, a complete surprise, etc.) which I was in agreement with. But it’s been 1 year 4 months since he did the original proposal and nothing. We wanted to do our wedding in August 2026 but that came and passed. I haven’t nagged him about this at all because I’m trying to be patient.
However, now since September 2025 he’s not been wanting to do devotionals or go to small groups, no longer attend marriage classes, prep for marriage, marriage small groups, Christian marriage counseling, etc. Sometimes church on Sundays that’s all. He’s spending more time playing video games than spending time with me or God. It’s videogames, me, then God-centered relationship. I try to encourage him but he even gets annoyed at this point. I don’t know if I should just cover him in prayer and keep encouraging him even though he gets annoyed, or if I should take this as a sign that our relationship is just doomed and start trying to go our separate ways. We do see each other as husband and wife, but I feel like I basically married my husband who was close to God and now doesn’t wanna have a God-centered relationship. Which I know that does happen in some marriages, I just don’t know what to do now though.