How not to become a good boyfriend? Make her fall for you even more, so she'll not have any chance of leaving you. Acknowledge that she's not perfect, and that she can't do everything for you. Cook her foods, and make her fat so others will not fall for her. Give all your time to her, so she'll not have any choice but to give her time to you too. Remember that she's only a limited edition, so you can't have anyone like her- Make her misses you more, so when you see each other she'll give you her best hugs and kisses Make her independent, allow her to do things of her own Allow her to dress anything she likes, and make her responsible for her own decisions Let her know the worst part of you, so you'll know if she'll stay or go away Make her laugh until she'll feel pain in her stomach. Let her cry hard because of your little surprises, Let her cry harder because you love her that much.