I need help with this girl situation!?!?!?

ok, so theres this girl and ive been hanging out with her on weekends, after school etc. recently her parents went on vacation. I know she likes me, "we cuddle on the couch, she falls asleep in my arms etc.) so anyway her parents went on a short weekend vacation. Her babysitter doesnt know me or what i look like. So last night she texted me and said "if anyone asks if u were at my house tell them you were". the next message sid " nevermind i already got in trouble" Apparently she got caught with two guys sitting on her couch. she told the baby sitter that they were Myself and my brother! originally i was mad but i dont know if she was just friends with one of these guys or somethin more. now shes textin me to see how my day was and stuff and she also wants to apoligize to my stepmom for lying being that her mom and my stepmom are close friends. Help im confused what should i do?