My brother is 21 and he's been talking to this girl name Katie for about a month. They met at his job. He really likes her but she has a past for being with multiple guys at once. Katie is more out going and goofy than Rebecca. Rebecca is my brothers ex, they have recently got back in touch , she's more quiet and chill. They was together for 1 year but broke up due to her moving to another state. He still loves Rebecca & wants things to work between them since she is his first love but he also likes Katie , he always talks about how funny & adorable she is. I hate seeing my brother like this. He dont kno what to do.. I need u guys help in deciding what he should do.