Female led relationships discussion

I got milked last night and was rewarded with a milking session, she tried but nothing came out. I was totally turned on, it’s been over a week since my last ejaculation, not sure why I didn’t just pour out. She visited again on Saturday and things were about to work so well that I feared I might cum and told her I had to stop. Now there isn’t a single drop left. It wasn’t her fault; when she went to wash up I did some light prodding but couldn’t find the sweet spot either. I was looking forward to some relief but guess even that is uncertain, wish I knew what the problem was, feel like I disappointed her.