A Masked Friend

We all had a friend with a mask, Didn't knew until last, Sweet Angels on outside, Evil Rivals on the inside, Sometimes it's not the person who changes, It's the mask that plunges. Anger and jealousy seeks behind the mask, Yet unaware until last, They seek you as a candidate, Than a good mate, Sometimes it's not the person who changes, It's the mask that plunges. They want you down, Hard on the wet glass ground, Be alerted, Than conquered, Always remember, Sometimes it's not the person who changes, It's the mask that plunges.