Like you said it's your no.1, it's also her first grandchild. Yes everyone will be pretty possessive when it comes to the first child of the family and even first grandchild of the family.
She as a grandmother def want to show love but without knowing she has 'offended' you with her actions.
Sit down have a good talk with her.
She is your mother after all. Slowly talk to her and tell her how you felt with all her actions done.
Hang in there.
I been thru that. it gets better after awhile.
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