I'm glad you feel that way
You say this when someone disagrees with you, but you're too tired to fight, so you fake being happy about their opinion just to end the conversation.
'I'm glad you feel that way,' he said, then went back to scrolling on his phone.
'I'm glad you feel that way,' she said, even though she didn't like what he said at all.
'I'm glad you feel that way,' he said, then went to take a shower and ignored the rest of the conversation.