Thanks for sharing! A bit of jealousy and a bit of guilt would be normal. I would suggest to just allow these feelings, acknowledge them to one another and then move on. Trying to deny or stifle feelings that are normal is where problems can crop up.
Sometimes if feelings are extreme, a behavioral change could be in order, but sometimes (especially when things seem to be going so well) just acknowledging the feelings as normal might be all that is necessary.
Good luck and keep sharing!!
The key to life is in being fully engaged and peacefully detached simultaneously and authentically in each moment.