Recommendations Novel with male mc and female lead who is cold on the outside but shows a nice side when with the mc

I’m looking for a male mc preferably cold and with no harem. I don’t want some perverted mc, I just want a loyal mc who won’t go looking at other girls and only has a heart to the female lead. I really don’t care what genre it is but it has to have a romance, it could be a sub-plot. The female lead is cold to anyone but the mc. She shows a warm side to the mc but cold when talking to others. That’s all! Have a good day.

I have a feeling my requirements are a lot. Sorry...

 

Bunny Husband