My friend did a self check for hymen presence. during the examination she touched her hymen with her fingers without pushing. will she lose her hymen?

Unlikely: The hymen is like a door. If you don't push it open you won't "lose" it or tear it open. Some women are born without one or lose it in non-sex activities in life. It is never a guarantee of virginity, although many cultures use it as such.

No : It's not likely that she would rupture her Hymen through simple touching and self exploring