Insecurity Leads to Competition

Generally speaking, in a biological family when a parent gives time and care to their child they are also caring for their spouse. But in stepfamilies when time and energy is given to someone else it can feel like a threat. A stepparent may resent the time their spouse gives to the children or kids may feel jealous of the time their parent gives to the stepparent. The issue here is insecurity. So you don't feel the need to compete remind yourself God provides us with an endless amount of love.