I have started to become dissatisfied with the amount of effort my girlfriend of 1 year has been putting into the relationship (lazy during sex, always asking me to come over her place or come pick her up instead of her coming to me, etc). Over the past few weeks I have been going through the first 2 steps of the dread technique (going to the gym more, recognizing and passing shit tests, focusing more on work, school and my social life outside of her, etc)

I can see a change in her attitude. The sex has improved and she is doing more things like cooking more often. She's also been sending a lot of nudes/sexy pictures recently.

However she has also started to act a lot more paranoid and possessive. At first it started out ok, she just asked me what she could do to make me happier. Then she started to act possessive (worrying about who I have added on social media, asking if I was attracted to other girls). She also keeps asking if I still like her/attracted to her (I tell her yes). How should I go about responding to these types of questions/behavior?