Sexuality help

I've been married to my husband for 5 years. Although I have had this underlying feeling the last few years that I may be gay. I've been openly bisexual for a long time and been with girls too. But I feel I need to explore it more. I'm no longer feeling happy/attracted to my husband but he is literally my best friend. I love living with him & we're raising our young daughter together. I love him but i don't think i'm in love with him anymore. I don't want to potentially ruin my family for a feeling though. Any suggestions?