Why would an ex reach out to me a year and a half after we broke up?

[Anonymous]

A year and a half ago, my ex broke up with me because he said he was struggling with his mental health. Our relationship was extremely toxic and to this day I’m unsure if this is really why we broke up. Since then, we have not remained in contact. I’m now happy and in a new relationship. However, his message caught me by surprise. He said that he was reaching out just to see how I was doing and to possibly follow me on social media (he’s currently blocked). I informed him that I’m in a new relationship and that exchanging social medias would be inappropriate. Although I have no interest in him romantically, I can’t help but be somewhat triggered and confused by his decision to reach out after so much time. From a males perspective, what is the purpose of doing this?

[TenkRealist]

To get back. He probably healed and want you back. Or to use you. Could be both. But yeah just don't let him back in. Cut off contact, stay loyal to your partner. Maybe he's changed but yeah, loyalty is more important.

[19LEGION74]

He either still has feeling for you, or he feels guilty how he treated you, if he does have an illness it could be part of his therapy to reach out to the people he thinks he affected the most

[In_Trance]

he's bored and thinks you're easy