I love spending time with you
When you tell your significant other you love them, and they say 'I love spending time with you' like it's the worst lie they've ever told, and they're already planning to ghost you.
'I love you!' 'I love spending time with you.' (He texted that 10 minutes after I sent the message.)
'I love you!' 'I love spending time with you.' (She said that while watching a 4-hour movie.)
'I love you!' 'I love spending time with you.' (He said that after I told him I was going on a trip.)