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2. DURING THE BIG BASH
It's the first time she's partied with your friends. This is an opportunity for her to see how you behave with your buds, how you deal with flirtatious women, and how you handle your liquor.
Make her stay: Introduce her as your girlfriend and give her lots of attention throughout the night, even though there are a million things distracting you.
3. WHEN DISASTER STRIKES
Something horrible has happened to her, to someone she cares about, or to the world at large (think terrorist attack).
Make her stay: Get to her side ASAP, or at the very least, call often to check on her. Leave her sad and solo during a rough time and she'll immediately be convinced that she can't count on you.
4. AFTER HER FRIEND'S ENGAGEMENT
As she eyeballs the new rock on her friend's finger, her mind will naturally wander to her own future wedding. Can she picture you at the altar, smiling lovingly as she promenades down the aisle? If she can't imagine being happy with you for a husband, she'll seriuosly doubt whether she should continue dating you. A talk about where your relationship is going is likely to follow.
Make her stay: Expressing a positive outlook- even if you're not making promises- is the best way to ward off her panic. Tell her you can imagine being happily married to her someday.
5. ON HER BIRTHDAY
Turning a year older sends a girl into stressful spiral of relationship reflection. Is she settling for you? Is your relationship as happy as it could be? Should she break up with you while she's still young and try to find Mr. Perfect?
Make her stay: She'll take the thoughtfulness of your gift as a sign off how well the relationship is going. Make sure it's personal- like a necklace with her favorite stone in the pendant, or a framed black-and-white photograph of her favorite city.