Ian arrived at The Red House with Cala, Milo, and Mills. The woman was extremely happy, clinging to her brother as if she had not seen him in years. Ian knew it was in part because she and Drax had not been doing well. Drax had thought it was a good idea to lie to Mills about 'hostility' she would face in Pan. He had even forbidden his sister from taking the woman around, likely in fear that she may find someone else to cling onto.
Ian found himself glad that he had listened and stepped away from Mina when he did. There was no doubt in his mind that he would have kept her by his side until she agreed to marry him if he didn't have Lisa to deal with, and with the way the woman kept secrets from him, he would have regretted it at once. Ian believed that because Drax was engaged to Mills, he felt obligated to stay with her, despite the two of them having moved on from the honeymoon phase.