Loving your man but have the taste for Pussy

I have been with my fiance going on 9 months and lately I've been having an urge for some pussy. I never mentioned it to him or even came close to opening my mouth to bring it up. I been on dating sites and even watched lesbian porn. I know right this girl got a problem. Please don't judge. This isn't the only relationship that I've had this issue with. Two years ago I was with my ex and we were expecting a baby together. I wasn't happy in bed. He wasn't pleasuring me the way I wanted him to. So I went and and had sex with a woman least I know she would know how I want my pussy ate of course she would she was my best friend. She was my first and we always use to link up and have sex and I would go home and act like nothing happen. That was 2 years ago. Long story short I found out something new about myself and that is I'm Bi sexual. I have no shame in it. My taste for women comes once or twice a blue moon. But since being with my fiance I can't make that move because I feel it will hurt him. He knows about my past but I don't know if he would accept that I want pussy too. When I explained to him about my past he accepted it. But I could tell that if I did that to him our relationship would be over. But I can’t help myself on how my body, and my mouth feels. I know I can control it. But what if I don’t want to control it. I’m used to men cheating on me and I get even by sleeping with a woman. Trust it hurts their feelings whether they’re into lesbians or not. Til this day my ex is still mad at me for having sex with a woman. I have needs just like everybody else in the world. I have always admired beautiful women even before I started experiencing my sexuality. What I admire the most about some women is how they carry themselves and of course how big their asses are. Wonder to myself is her pussy wet and worth trying to taste. Thinking about it makes my mouth water. As I lick her pussy up and she comes all in my mouth it turns me on just thinking about it. I’ve met other women but never took that step into having sex with them YET! Before I make that move I think about my fiance and our relationship. Will me wanting to sleep with women mess up our relationship or will he be okay with it. I wouldn't know how to even ask him about it. Story of my life. I feel if I went to him about it he would judge me and than make me choose between him and wanting sex from a woman. Not sure if it’s just I love sex to much and I have a problem or is it just who I am. Instead of my lover being a man I rather it be a woman. But either way I know it’s wrong. I’m stuck in two worlds but I don’t want to let go of either one of them. I know why not let him join for a threesome. Nope! I don’t like to share. No woman is getting dick from my man and my man isn’t licking or fucking another woman. I know I’m selfish but if you were in my shoes what would you do. Hope you guys like the story, leave tips if you like it. Thanks