Renting an Apartment to a girl that never liked me?

Ok when i was in high school there was this girl that i liked but acourse when your young and don't have money and not cool they will always ignore you.. I remember this girl because we used to always catch the school bus together and she sat next to me one day and i started to talk to her.. She just ignore me like i was invincible and that made me feel bad.. She used to stay 5 houses down from me.. We used to get off the bus and and start walking, she was embarred to be seen with me because i wasn't a jock or whatever, she used to ignore me and walk REALLY fast to get away from me when i tried to talk to her walking home, i was cool with her sister and never had a problem with her but she had a BF and i ask her why her sister never talked to me.. She said because i was not a jock or popular in high school watch i didnt really care to be back then, this was 10 years ago.. Now the good part.. As time goes on i have 4 apartment houses next to my house i bought in 2004 and they came looking for a place because mom kicked the one that never talked to me and her BF out the home.. She came and knocked on my door last week and i open to see her and her BF.. I instantly knew who she was and she just kinda mumbled umm yea hi i remember you can you let us see a apartment she was super shocked. I showed her around the place and she started a conversation which i just noded my head yes and no like i didn't really care and she knew i kinda wasn't interested in renting to them.. I found out she has bad credit anyways and she called today begging for me to let them move in because the rent is what they can afford. She called me today begging to please hook her up because i was friends with her sister, whatever but so far i told her i will be back to them.. Should i let the p make a decision on me renting to them.. I really hate that she did that to me!