How to fix my SIMS FREEPLAY for iPhone?

I have the newest update for the Sims Freeplay game for iphone4, (the Halloween update) and my goal is to add a new sim.
At the moment, I have 15 sims, not enough money to pay for a new sim, (costs $250, 000) and not enough life points to get one that way. (costs 10+ life points.)
I also can't buy a crib, because I don't have a married couple, and they can't get married because I don't have the life points to buy a ring!
So I'm trapped in this circle, and don't know what to do!

Please, any suggestions will be very much appreciated: D

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