Would getting to know her be a horrible idea?

Helloeriss01
I just graduated college. I’m 22 years old and there’s this one girl ( a lesbian ) who I’ve had a couple of classes with in the past but it’s been a couple semesters. Once I was walking up to my desk and I caught her staring at me and we had another class the next semester and I definitely caught her glancing at me a few times but her and I never talked.
I think she would’ve been interested but I was also in a relationship and wasn’t interested in her until a certain point.
I made a new friend my last semester and I found out that the new friend follows this lesbian on social media. They’re both still in college and 21 but I think they’re graduating in May. I don’t know how to approach the situation and I don’t have Instagram other wise I would just slide in the lesbians dms lol so I’m not sure what to do without being weird? Should I just let it go? I’m not looking to necessarily get in a relationship but I think this girl could be fun. I don’t want to bring her into anything confusing because I kinda have a crush on a friend of mine and the friend is giving kind of mixed signals and gets jealous but I would hate to get with this girl and then things start happening with my friend so I don’t want the lesbian to seem like my backup option. I don’t think dating my friend would be a good idea because she has a lot of issues but I just want to make sure no one gets hurt. So for the lesbian should I add her on Snapchat? If so, what do I say? I have a friend who’s kind of a pessimist / realist and told me to go to the cafe where she works but I don’t really want to go there lol. What’s my best option?
Would getting to know her be a horrible idea?
1 Opinion