In this song by David Guetta, the lyric "I am titanium" is used to express the state of being tough amidst adversity (relationship wise). The message of the refrain is that even if the person is afflicted with both emotional or personal stress, one can stand on his or her own and that one's existence (or happiness) does not rely on what others try to impose. Titanium is a form of metal 45% lighter than steel but is stronger in a way that it can withstand the extremes of temperature.

what does titanium mean ik but like what