Am I a homewrecker?

Hi. Im now in a relationship with a guy who claimed he was single before we dated. And when we were already together when her ex girlfriend told me they're relationship and our relationship overlapped. But they separated already. And they are not married. They have a baby. And i didn't knew about anything about this. she's calling me homewrecker. Now the guy is going to marry me. Am i still a homewrecker?
Am I a homewrecker?
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