Put your foot down and take control of the money. He's clearly not financially responsible if he thinks now is a good time to spend an insane amount of money on a phone.

Leave the manchild before he takes you completely down with him. He does not care about you or your well-being.

Finally, he's about to make a good decision and now is the time you want to intervene? You should have stepped in long ago, but now that he's about to make a genius move, you gotta get out of the way.

I was married to the same kind of dude, and well we are now happily divorced and he's in deeper debt than when I was with him, and still trying to swing his business ideas that are making him go into debt, with no other life plans. he had tunnel vision on his dreams, wants and needs, while leaving me in the dust and completely depressed because we were no longer a married couple, just a couple of people trying to get by and dealing with each other's shit

he will continue to do this, because at this point you haven't stopped him. honey your financial and mental stability is worth so much more than letting this Manchild create a false hope that is already sinking you. remember you are two singular people who chose to come together as one, he needs to understand your needs and wants and how to take care of the family unit to continually be able to choose you