Everybody here has great information that I support. I can only add one thing and without judgement or saying what I think you should do in this decision, i hve to say one thing.

If you do decide that you are no longer in love with your husband and you work out that you are not just infatuated with this other new "love", or that you are filling a spot where your husband is lacking with another man, Please, for the Love of God, do not cheat. If you're going to be with this other man, just don't do it on the side. Do it for real if at all. being one from two marriages where women decided to leave to pursue others or following cheating, that hurts worse than if they just broke it off first.

Again, not recommending this or judging you, just saying please keep in mind that aspect, and don't fall into the trap of a double life.