How is it different between "I can only think about her" and "I can't stop thinking about her"? Is there any difference in nuance?
Native speaker’s answer
Rebecca
Yes, there is a difference between "I can only think about her" and "I can't stop thinking about her". If you say "I can't stop thinking about her", it implies that you are trying to stop thinking about her but you are unable to stop. "I can only think about her" implies that you want to think about her and you aren't trying to stop. The expression "I can't stop thinking about her" is also more common to use.