Should I stop trying to get with this person

I recently met this girl at work and we instantly hit it off and have since admitted we have feelings for each other and kissed and I do really like her. However I am slightly worried about one of her friends, they are really close and tbh I think there is something going on between them. She talks about her quite a bit and the other day she did call me her name when drunk. I also found out that all of their friends thought they were together and a lot of people they meet for the first time also think that. They do things like make dinner for each other and watch movies alone. Should I stop trying to move forward with her?