Don't cry. Your bad mood only makes things worse. Your husband needs your support just like once he gave it to you before. Showing your love and patience is the best way to encourage him. Ask for what he needs, give him your suggestion, try to do the covering letter together, act as a receptionist or interviewer just for practicing English......Everything will be OK. It only takes time.

BTW, job searching is a full time job too. Actually it's very hard for somebody to do a full time labour job while keeping on job searching. If you do worry about your money, both of you can try to work only at weekends.

God bless you two.