Please read up on attachment styles.

You are describing a very insecure relationship.

You, most likely are somewhat anxious/ambivalent and she is likely avoidant to some degree.

You will not be happy if you feel like you have to continue like this. You need to set boundaries, clearly defined. If she can’t work with them, that is a clue things need to change.

There’s a very good book about this called Attached. Helped me begin to move on from my marriage.