What are the 3 biggest things that women should be wary off?

What are the 3 biggest things that women should be wary or cautious of in a Marriage?

Sudden change in lifestyle.

First tell tale sign of having an extra-martial affair.

Always holding and texting on his phone or bring his phone to the wash room.

Security pin lock or in silent mode on their hand phone. Not picking up call in
front or their spouse or having a very short conversation with the caller walking away from their spouse.

Always working/return home late, including of weekend.

By: Private Detective Singapore