My boyfriend cant keep a job. What to do?

So I (18 F), my boyfriend (20 M), we are 1 year togheter and in that one year he changed multiple places of work (bartending). I love him very much and he loves me. He showers me with love every day, even after a year. He is so kind and good to me and treats better than I ever heard any guy treat his girlfriend. He does anything I want/need from him, we planned our future even (I know its too early to do that) and he always tries to adapt to me and what I want. He is also the type od guy who helps elderly or anyone he sees that needs his help, helps women if men are haressing them, protects me all the time, even my friends. Unlike other men from my country he isnt misogynistic, I dont want to have children and he said he is okay with that if I dont want it even tho he wants children. He loves to cook, he buys me flowers, compliments me every day, buys me small gifts or food if I feel down etc. He always wants to communicate our problems and he is emotionaly intelligent. Sex life is also great. He is the perfect guy, but he just can't keep a job and its starting to be emberassing, because he moved out of his city to work where I live and since my whole family knows him and its a small place, they also know that he gets fired from every job that he worked here. And I dont know how does he manage to get fired everywhere, he says he doesnt know either and cries to me when it happens. And he isnt the type to be unemployed, he finds another job after maybe a week after getting fired, but its just annoying how he cant keep a job. Also he doesnt know how to save money, he spends it on stuff like eating out every day, buying me stuff (I am gratefull for that but I told him multiple times that he should save money and not spend it on me) and that costs a lot, especialy in my country where prices are up but salaries low. He lives salary to salary with no savings and its bothering me since I want a future with him, if we ever wanted to buy apartmant, he would have no money to do that with and I would need to pay for everything which isnt an option. I gave him an ultimatum, and I told him that I would break up with him if he cant keep his next job for more than 3/4 months. He told me he would do anything to have a future with me and that he will try his best. But I dont know is he capable of keeping a job at this point. I realy want him to live up to his pomise, because I simply cant imagine myself breaking up with him, but I have a feeling I have no choice if this keeps happening.

TL;DR : my perfect boyfriend who I love very mush cant keep a job even tho he is trying to, and I dont know what should I do