Re: Episode of the Week: 2x01 The Child
Given that Picard didn't know Beverly when she met Jack, there are still those months she was undecided, and she could have met Picard then. She's not aware Picard was in love with her until "Attached", but you can have sex with someone without being in love with them.
Really though, the writers just wimped out because they didn't want to nail it down.
Dr. Howard, Dr. Fine, Dr. Howard: For Duty and Humanity!
--Men in Black, 1934.