Here, a lender sued on a HELOC loan which provided for monthly payments, gave the lender the discretion to accelerate the loan on default, and provided for any remaining balance to fall due on a specified date. This decision holds that the HELOC called for separate, divisible performances by the borrower–namely, the monthly payments. So that the lender could sue for default if suit was filed within the statute of limitations of any missed monthly payment–so long as the lender had not accelerated the loan outside the limitations period and the final payment date also had not accrued outside that period.