He had merely left friendly messages inquiring after her health , letting her know that he was thinking about her and not angry . No , he was n't angry ; hurt yes ; but he did n't tell her that . She could probably sense that and he thought leaving well enough alone was best .
According to the above context, choose the best option to answer the following question.
Question: What kind of relationship does he have with her ?
Options:
- They are involved in business together .
 - None of the above choices .
 - They are involved romantically .
 - She is his daughter .


They are involved romantically .