Is it okay to feel okay? Sure, it's okay! I think, when a relationship devolves to being so unsatisfactory and one has wrestled with it enough until it became draining, then it becomes a very sobering realization that it is a dead thing, and that needs are no longer being met. When things happen that way, it is much easier to look at it impassively and say, "Nope, no more of this shit for me," and move on. Maybe you've only been on the other side of a break-up, being the one who was hopeful and still invested when the other person said "no more," so it feels weird now to be almost business-like and efficient about ending it. But it sounds like you're in the right place. Good for you for giving a date to get out - I do love it when women stand up for themselves with such confidence.
Independent solo polyamorist seeking lover-friends willing to invest in friendship, companionship, and love, but without a need for partnership.
Never confuse commitment with exclusivity, love with ownership, nor sex with intimacy!
For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.
~ Carl Sagan