1. How do I find or go about starting the exploration of women? I know it can be frustrating for the gay community to meet people like me, because a lot of them are not wanting to explore, they are looking for relationships. I don’t want to offend anyone.

Well. Some people are simply offended by the existence of non-monogamy. So you can't control that. But, you have a right to seek partners in the appropriate place and with honesty. Its a small niche dating pool. What you cam do is get on tinder, okcupid, feeld, HER, or another app. State upfront that you have a serious partner, practice non-monogamy, and you are seeking casual partners. Only match with others who indicate that they are open to non-monogamy. You might feel comfortable matching with people seeking casual hookups only or not. Casual hookups are also a form of non-monogamy, but those folks still might not want to hook up with someone who has a serious partner. So its a mixed bag. Women who date women is a small pool. Women who date women and are ok with ENM is smaller. And those ok with you having a male primary partner are even smaller. Don't require anyone to meet or engage with him and don't put pictures of him on your profile.

1. I would still like to hookup with men if we open the relationship. I think I may be opposed to even opening it all together if I can’t also hookup with other men. We’ve yet to discuss our boundaries, but i feel like this topic would upset my partner. I don’t know how exactly to approach this.

If he gets to hookup with women, you get to hookup with men. End of story. Hold firm on this. If he is a hypocrite about this then that speaks to his character.