What she is doing to you is "constructive eviction". That means, she is making it hard to live with her. Now these may be hard to prove in court as learned experts state. The good aspect and perhaps the best aspect is that you don't have kids. I strongly suggest to keep it that way. Never have kids with her. Use protection if you have to. If you have kids, their lives will also get ruined and you will have face much, much worse situation.
Now the solution for you moving forward -- is to simply rent another place and live separately. As for police cases etc., you must be prepared for them. They don't arrest you automatically. You have ample time now. Research and find an able lawyer who can protect you against arrest, and unnecessary PS or court appearances. She can file 498a and DV cases. Police don't arrest automatically for 498a. First they call advocates and counsel. During that time, your lawyer can get Anticipatory bail for you. DV is purely a civil case. If she files, she will also have to run around courts, and she won't be able to prove it after 5 years, in which case she won't get anything. But if she files these false cases, it will make it easy for you to get your divorce because false complaints on husband is ground for divorce -- well established fact.
If you can't find another accommodation, stay in the same household, but show that you are totally disinterested in her. Don't talk to her or listen to her. Live your life. After a while, she will get tired and leave you herself. Don't show your desperation for divorce though or else she will use that as a leverage to squeeze more alimony from you. Pretend like you don't care for divorce, but also not interested to live with her (if you are truly not).
I do agree with others above that it is better to make the marriage work since it takes time for adjustments, but whether that can happen or not is best known to you. It is hard to comment from the outset by outsiders like us. I also agree that amicable settlement for divorce through mutual consent is best, but that is possible only if both parties agree to it. Often one party is greedy and won't agree to it.