Many scenarios:
1- You cannot understand him being too much confused and under pressure. There is nothing to suggest he is not under pressure himself since he has limited resources. I am sure he wants to have a great wedding but may not be able to afford.
Many men marry in bad financial situations and eventually become very strong financially and cherish the dedication from their wives during difficult times all their lives. Many people I know lived in an apartment and then eventually own a villa.
2- He may be interested in someone else and he is telling you to break off but you are still clinging to him. Its not possible that someone just expect a new wife to sleep in hallway. He is just looking for ways to make you so disgusted that you leave him and he has no emotional regrets. He will satisfy himself by saying to himself: Oh well, She did not want to sacrifice.
3- He needs a strong person to be with him. And you seem not to be one and emotionally very nice and caring but not strong enough. Besides love and care, some men also like strong women in their lives.
Just tell him you are not going to leave him for any reason but only if he really likes someone else.
Wait to get married and tell him its not because of his financial reasons but his other emotional stress. If you waited that long then why not wait for a few months more?
Keep your options open however and do not get too much sucked in to situation.
Nothing can be disastrous than two people married with too many emotional disturbances and negativism.
Good luck.
Finally, a man is a man enough to admit this. I have a feeling this is exactly what your 'man' is trying to tell you!