You say "to be with"...
I am not sure what that means, so I am assuming not marriage.
Make certain that the two of you have a mutually agreed set of expectations regarding such financial matters as:
Who pay what bills?
How are such items as insurance including: health, life, fire and casualty and auto are allocated and paid for?
How is ownership of jointly acquired property maintained?
Is it clear that property acquired prior to the arrangement remains with the respective partner?
Dissolution of your living arrangement. You have to consider that by giving up the hobby, you are probably giving up some of your peak earnings potential for the future. How are your financial interests protected during and after the arrangement?
If you are relying upon his(?) earnings during your arrangement, what happens if he dies suddenly?
Sorry to sound like a downer, but you are making two decisions. The first is that you want to be with this person and the second is to give up a source of income. By necessity, you cannot know in advance how the first will work out. You should do all that you can regarding the second to protect your interests.
Best of luck to you
