Why did my ex randomly add me?

My ex of 3 years, has a new girlfriend that he has been with since August. This is his 7th girlfriend since he got out of prison June 2021. I have not spoken to him since he decided to cut me off for good back in April 2022. He randomly added me on Snapchat yesterday and I clicked IGNORE. He is also still dating his girlfriend so im confused on why he is trying to add me.
Why did my ex randomly add me?
Post Opinion