My (29F) ex-husband (31M) asked me for a divorce 5 months ago but is now trying to woo me back.

My ex-husband and I got married 5 years ago, after being in a long-distance ?relationship? for 2 years. At the time, I believed my ex loved me but once the honeymoon period was over it became apparent he had only ever been in lust with me. I was a late bloomer when it came to dating so I didn?t have the experience to figure it out before we got married.
He pretty much discarded me once he had got the lust part out of his system and I was sent to live in his house in my home country, while he lived in and travelled to various countries, like some unwanted toy. The only time I saw him was when he would stop by for sex before he immediately left again. For the first two years, I stayed where he wanted me to and held onto the hope that he would realise he was treating me awfully. He didn?t, so I left. I always knew he was keeping tabs on me so he would find out the minute I left, and after the way, he had treated me I didn?t think he deserved the courtesy of a face-to-face breakup, so I didn?t warn him. I received one call from him a week after I left asking me where I was and informing me he had never had to beg for something in his life so if I expected him to beg me to come home I would be disappointed. He never contacted me after that and I never contacted him either.
Fast forward to 5 months ago and my ex shows up on my doorstep unexpectedly to tell me he wanted a divorce. Our relationship has been over for a long time, so I was shocked by how much that hurt but I agreed. My ex expected me to make things difficult and messy for him, but I wanted him to go away just as much as he wanted this divorce. So, I was willing to sign and agree to his terms to make it happen.
Despite me agreeing to what he wants, he has spent his time buying me gifts, inviting me to dinner under the pretence that he wants to talk about the divorce but spending the entire time talking about our marriage and ?what went wrong?, apologising to my family and making amends with them too, doing me favours, etc.
I don?t understand why he is acting like this and I don?t know how to handle it. What do I do? How do I handle this?
TL;DR ? My ex was a terrible husband who disposed of me once the honeymoon period wore off. He finally asked me for a divorce 5 months ago and even though I agreed to his terms, he has spent the last few months trying to ?woo? me for some unknown reason.


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