18m still wants boob!

Im ready to be done at this point as I’m being used as a pacifier at night and could really do with a good nights rest! He still feeds from me morning and night and always prefers tit over bottle if I’m around. I have started working a few days so he has milk and food but wants boob soon after I’m back… any suggestions on breaking this cycle…

I have tried changing the order of bedtime and refusing night feeds but he works himself into a fit and when he gets worked up so much he vomits it just doesn't feel worth the fight…