Addition info to clear up any possible misunderstandings:
The 1st flag is the bisensual flag, the next one with the heart is the biromantic flag and ofcourse the flag on the bottom is the bisexual flag.
It’s completely valid to have a sensual, romantic, and sexual orientation identity if someone chooses to express their identity that way. People who choose to do so, typically have an orientation that differs from another one they have. For example, it completely possible for a man to be only attracted romantically to women and sexually attracted to both of the binary genders. In that case, he could identify as a hetreoromantic bisexual if he wanted to and it would make things clearer to others who know him.