I’ll repeat wisdom I’ve repeated before: When you try to imagine going through life without their good qualities, you think, “No way, can’t live without them,” and when you imagine a lifetime living with their bad qualities you say, “Yeah, I can put up with those.” Then you’re ready to spend a lifetime with them. If you think they don’t have bad qualities, you haven’t been together long enough for this decision. If you think you can change their bad qualities, you aren’t ready for a long-term relationship.