Infrastructure Software

Could someone clarify my confusion with restarting resources.

I have a 2 node SC 3.2 with a single oracle database.

The customers requirement is that if there is a failure of oracle database or listener then the cluster tries to restated the resource, but doesnt initiate a failover.

The Failover mode for the Oracle server and oracle listener resources are set to RESTART_ONLY.
The Oracle server resource has a retry count= 1 and a retry interval = 300
the listener resource retry count= 3 and a retry interval = 300

What I have found during testing of the listener resource is that it works, as I expect, if I kill the listener process 3 times within 5 minutes then the cluster restarts the service. If I kill it once more the cluster then reports that it has exceeded retry count and doesnt initiate a failover ... All good.
However, at what appears to be 5 minutes after the first restart, with no administrator intervention, the cluster restarts the resource. What is controlling this restart and how can I turn it off ?

Thanks