buds not opening?

it is due to lack of water. either water more frequently or pot up into a bigger pot and add water retaining crystals to help it out :o)
welcome to GoY

Yes, roses are moisture loving plants. I grow lots of things in pots, and in this warm breezy weather things dry out very fast. It's hard work keeping up with all the watering. I test each of my pots for moisture level at least two times a day. a) I stick my finger in the top to see how it feels, and then b) I tilt each pot to see how much it is weighing. A dried out pot is very much heavier to tip than a fully watered one, and is an important indicator. Even despite all my diligence and effort, I still have some pots dry out on me a fraction too far sometimes, and then whatever is in it stresses and ails. From what you describe, I'd say your rose can probably recover fine, and flower too.

thanks for these, and it seems to be working, I have some buds just about to open, will put a picture on site when fully open. thanks again, this site is fantastic for newbies like me