Why would my ex come back and talk about his feelings?

He made the choice to break up with me and I accepted it. He's initiated contact with me a lot (I'm never the one to reach out, because I'm not the one who cut the cord). Each time he's always expressing he loves me and will always love me but this past time he got pretty deep and told me about all his fears and how at one point he was wanting to marry me. The key word in a lot of what he had to say was "scared". He did suffer abuse as a child so I'm always doing my best to validate his feelings. I'm just wondering why he keeps coming back telling me all this with no purpose it seems and why he can't let go. I was the more loving, compassionate, committed, and accepting one in the relationship and it hurt me more but I can at least intellectualize he needs to move on as much as it'd hurt even me.
Why would my ex come back and talk about his feelings?
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