Bf says he is bi

Hi guys

I need some advice.

My bf (33m) of 3 years came out of nowhere during a deep conversation a month or so back to tell me (25f) he thinks he is bisexual. He said it's nothing to do with me or my looks he still loves me and wants to have kids and all that, but he feels he is also attracted to other men.

I don't know how to feel, it plays on my mind if I am the cause of this, does he really love me? Am I just a show piece for his family? Do I have kids with him?

I am just really confused and not sure where to take things from here. I love him, but after hearing this I just don't know how to feel.

Any advice from those who have perhaps been in his situation? Do I stay? Does he need counseling? Can you love a woman while being attracted to other men?