Why is he acting like Im his wife at workplace?

We work together and had past. In that past, he acted like a patriarch husband but never labelled the relation. It was too much and I left.

Now he is my reporting manager. Also he keeps acting strange.

1. Looking at me while working

2. Coming too close while talking

3. Staring into eyes, like, not the normal look you give to your coworker

4. Offers to take me for lunch or share his' with mine. And sit with me for lunch

5. Offers to drop home, pick from

6. Keeps complementing clothes and if makeup is too much, ask me to remove

7. Possessive over me at workplace like if the top of the cleavage is visible, he ask me to cover it up also checking if anyone looks there.

8. Always sit next to me, like always

9. Ensures everyone know that he is into me and no guy should look or make a move on me

Why is he acting like Im his wife at workplace?
Post Opinion