1. There’s no provision in law wherein a spouse has to compensate the other for wedding expenses per se.
2. You are not entitled for maintenance as you seem to be employed.
3. Staying separated for a period of time does make sense as it will give both of you ample time and space to think about your lives.
4. Ask your spouse how they plan on compensating for all the effort you have been putting in, if they want a seperation/divorce. Get them to think and come up with solutions amicably
5. Divorce mutually without any claims or blame game. Be civi, open and rational and you can pull through this.