My boyfriend said, I can't compare with the last one. It's no different. I don't know what it means.

Maybe he's just saying. Nothing special. It's that you think it's complicated Two people together, over time, from the sweet greasy in love to dull. The running-in between two people is a process of getting to know each other constantly, so this is the transition period of your feelings. Since his words make you uncomfortable or unpredictable, you can try asking him.