What can I do I do not want to lose her.
Most Helpful Girl
If you think she likes you then go up to her and maybe ask her out? It really depends on how sure you are about her feeling. If you don't want to lose her get closer, start conversations, girls love it when others initiate conversations! All this will stop you from losing her!
Most Helpful Guy
Have you tried approaching her and talking to her, instead of just waiting for her to approach you? If you like her, try and hang out or casually ask her to lunch or coffee. Be straightforward, hang out with her a couple times, and if things feel right pull the trigger. Don't ever wait around, trust me I learned the hard way.