If you are truly sure you need to leave this position OP, then I feel for you.
You have established a loving bond w/this child for the past year and a half.
Is there any way the family can offer you more hours? Or could you get a part-time position to supplement your current one?
Regarding your Mom Boss, is there any way you can talk to her directly + figure out a way this can work?
If all bets are off the table, then you have no choice. You can always ask the parent(s) if they would be willing to have you baby-sit him on occasion, maybe for a "date night" or....??
I get very sad when I have to leave my charges as well. However, speaking from genuine experience I can state that w/the passage of time (and hopefully a new job!), your feelings will dissipate. Your former charge will always have a special place in your heart, but you will move on in time.
Good luck, hope this offers some good insight into your situation.
