Sounds like the beginning of something that could be wonderful!
Just a word of caution, make sure you clear up any issues in your marriage before getting serious with someone else. Depending on the nature of the needs that you cannot satisfy for your wife, getting them fulfilled elsewhere may not work. i.e. if they're emotional needs or responsibility type things. If they're sexual, that can be a different story.
My husband and I have a very mutually satisfying sex life, but there are some sexual activities that I'm just not interested in, so he does those with other people when the mood and timing work out. But sometimes I have emotional needs that can't be fulfilled outside the marriage, i.e. needing to feel that he supports me and that I can rely on him when I need to.
“As I am sure any cat owner will be able to tell you,
someone else putting you in a box is entirely different
from getting into a box yourself.” —bisexualbaker