Romantic relationship between Lona and Milo? 🤔
Milo seduced Lona to do a favour for him, to retrieve something from Sybaris (A magical royal artifact item that improve his political power? Some kind of magical ability from Code Geass? )
Lona and Milo went to a date together, then Milo promised Lona to take her out of Noer together and marry if she managed to solve his struggles.
Then Milo being Milo, after Lona retrieved the item from Sybaris, he ditched Lona and start to get drunk on power with the magical artifact.