If any responsibility is being avoided or struck-down by any spouse, there are provisions to bring your rights where they belong.
You have complicated case in hand. Here the point is to bring him back to you. But before that, you should decide if you are ready to join him again? You should decide what you want to do with rest of your life!
If you want to live with him, then you can file an application in court seeking help so that the person could be brought back where he belongs.
If you do not want to live with him, then file for Restitution of Conjugal Rights (RCR). With this petition in court, your husband would have one year to join you. If he deos, its good. But I think he wouldn't as you mentioned he himself wants divorce. Then after one year you can apply for divorce based on desertion by your spouse and in this petition you can claim maintenance for your living or a lump-sum alimony.