If you’re one of those people who fall in love with someone in three weeks, I understand. I am in denial about being one of you, and I’m trying to change my ways. A significant part of establishing a healthy relationship that can last is not expecting too much from someone during the first couple of months of dating. You can’t expect someone to want to spend six days a week in your company if you haven’t even defined the relationship. We all know someone whose parents got married after knowing each other for six months and have been married for 40 years, but that is the exception, not the rule. Most relationships aren’t buoyed by moving in together after two months or becoming a parental figure for the other partner’s children. The latter is especially damaging, considering that people often break up after a couple of months of dating, and kids form attachments to the adults in their lives.