My wife and I have been together for 20 years, being married 14 of those years. The last 12 years my wife and I have been in The Swinging lifestyle and in that time you have grown. We have always talked about polyamorous relationship whether it be another couple or single and a year-and-a-half ago I met a woman. We hit it off and we started chatting everyday. What started off as a occasional swinging partner, turned into feelings for each other.
My wife saw what was happening and I was in denial but I can tell my feelings for her were getting deeper and deeper. So I approached my wife with the prospect of bringing her into our relationship and she agreed. We spent the next six or seven months chatting back and forth, the three of us together, my wife and her alone and her and I alone and the feelings all around became mutuel. It was then that we all decided that we should go one step further and move in together. Up until this time we had been seeing each other, she lived on one side of the country we lived 800 miles away, and we would travel to spend time with each other.
So my wife and I packed up our stuff and moved so that we could be with her. So now here I thought it would be no different than just living with my wife and we would all be happy, no issues, but I am wrong and I think it's all my fault.
I am finding it very difficult o be honest with the two of them about how I feel about certain things, not wanting to get them mad. Trying not to spend more time with one than the other. Then there's the sex I thought that it would be mostly the three of us sharing together. But at times they both feel left out because I have a hard time approaching them individually.
One of the things people take most for granted when they start out in non-monogamy or polyamory is how much time they had as young people to imagine what their future might be like in a monogamous context and how much the culture around them gives them ideas for what their lives might look like and gives them a step by step guide on how to get there.
When we jump into polyamory and non-monogamy, we don't usually spend relatively the same amount of time thinking about these things because polyamory and/or non-monogamy are kind of in and itself an ideal we think we want to aspire to. We rarely think about the physicalities of how our lives will change. We just imagine that polyamory or non-monogamy will be exactly like our lives are now... but somehow better. We don't tend to think that things have to change or that polyamory and non-monogamy would take away from our lives.
The fact is, when you agree to polyamory or non-monogamy, on the whole, you're not agreeing to monogamy plus. You're not agreeing to an upgrade. You're agreeing to a different way of doing things. And that requires some upfront discussion on all sides. I do worry slightly that you and your wife are forcing this to be a traid when it's not particularly clear if that's exactly something your wife wants -- outside of believing it's "safer" or maybe wanting to agree to the situation to avoid losing you.
There are some really important questions for you all to think about and discuss with each other -- not as a couple talking with one person, but as three individuals working out a compromise between all of your ideals. At some point you will have to face your fear of disappointing or angering one of them and perhaps remember that it should be possible in your relationships with people you care about to make mistakes without someone deciding to leave you. And that if someone refuses to give you a chance for making a mistake, they likely aren't someone you can build a sustainable relationship with anyways.
I posted two useful articles that might be helpful including one on Why Couples Always Want a Triad and a primer for people starting out called Thirteen Mistakes People Make When Trying Polyamory. In reading them over, you may want to speak to a polyamory friendly relationship therapist who can facilitate a discussion between all three of you about how you want to arrange your living together and what each person wants.
I'd worry less about things being exactly equitable as different people have different needs at different times and more focus on the fact that, as long as you are willing to listen to the needs of both of your partners and respond to them in the best way you can, there is ultimately nothing you can do if a triad situation doesn't work for one of them.
I hope this helps and good luck!