Hi Mandy! Spring is popping out all of the place here too. The weather has been really strange here this year w/little snow. The temps have been spring like for quite some time and everything is starting to burst out in color.
I think it's a wonderful idea that you and your son are going to go back to your "special" place. Both of you are hitting special birthdays and what a wonderful way to enjoy those special times. Just because it's some place that you've been before and shared w/your "x", you and your son are now stronger and more independent and can make new memories that are all your own.
Just remember, you and your son are survivors and have many happy memories of your times together...your "x" on the other hand lost out on those happy memories.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.