Rumours of Philip Ng and Moon Lau dating have escalated ever since the two filmed A Fist Within Four Walls together.
The two have repeatedly denied the rumours but that hasn't killed the fire.
Recently, Philip was in Central, Hong Kong shopping alone.
He was wearing a fitting black shirt that showed off his impressive biceps.
According to Asian E-News Portal, he repeatedly looked at his phone and looked unsure.
The media speculated that he was texting Moon.
He later walked into a nearby hotel and made an enquiry at the front desk and took a lift after checking around him.
Very suspicious behaviour, indeed.