What does it mean when my boyfriend tells me about past relationships?

Sunshine7
Whenever we talk he talks about past women he's had sex with, ex girlfriends, women who flirt with him. Always something about other women. I have male friends who do the same thing but I am not in a relationship with them. Is this normal male behaviour? I would think this is stuff you would tell a male friend.
What does it mean when my boyfriend tells me about past relationships?
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