I´m confused / Estoy confundido
You say bienvenido when talking to a man and bienvenida when talking to a woman?
But you say encantado when you are a man and encantada when you are a woman regardless of who you are talking to?
2 Answers
It's not a question of the sex of the speaker/listener but, rather, the sex of the person(s) to whom the adjective (bienvenido/encantado) refers. The same applies to plural endings for the adjectives.
Sois bienvenidos/as.
Mis padres estan encantados de haberte conocido.
If the person(s) referred to is/are, indeed, the speaker(s)/listener(s), then you could "say" that the form of the adjective is related to the speaker/listener but that's only because of the coincidence with the person referred to. In the second example that I gave the people referred to are neither speakers nor listeners (they are 3rd parties in the conversation).
Tú eres bienvenido (You are a man)
Tú eres bienvenida (You are a woman)
Yo estoy encantado de conocerte ( I am a man)
Yo estoy encandada de conocerte ( I am a woman)