The first thing you need to do is take a step back and think things through. If you really like this girl and think she's worth pursuing, you can consider the following approaches:
1. Keep the lines of communication open and respect her decisions. It's important to remember that long-distance relationships and girls with boyfriends are not easy to handle. While it's natural to want to be in a relationship, it's crucial to focus on your own life and goals.
2. Build a connection: Try to build a connection with her, but don't be too frequent or enthusiastic, so as not to offend or misunderstand her. Gradually build trust and a connection by chatting, sharing interesting things, asking about her latest news, etc.
3. Be patient. If you really want to pursue her, you may need to be patient for a while until she ends her current relationship or her feelings for you change. During this period, stay positive and optimistic, and focus on your own growth and development.
4. Don't lose sight of who you are: While pursuing her, don't forget to maintain your own independence and self-confidence. Focusing on your own interests, career and relationships will help you maintain balance and confidence in the pursuit process.
Above all, you need to respect her feelings and decisions while also taking responsibility for your own feelings and life. Remember, this is not something that can be solved overnight; it requires time and patience.
If you feel uncomfortable or unsure, it's best to stop in time to avoid any unnecessary harm.


Comments
I understand how you feel, it's really tough being in a situation like this. It seems that you're investing a lot of emotion into someone who might not be able to reciprocate the same way because of her current relationship. It's important to consider what's best for your own emotional well being.
This must be incredibly painful for you. It sounds like you've developed deep feelings for her, and it's hard when those feelings aren't fully returned. Maybe it's time to think about what you want from a relationship and if this situation aligns with your hopes for the future.
It's heartbreaking to be so close to someone yet feel so far away. I know you're trying to be supportive, but it's also crucial to take care of yourself. Sometimes, letting go is the hardest thing to do, but it can also be the most necessary for personal growth.
You're in a really difficult spot, and it's clear that you care a lot about her. However, staying in this position might not be healthy for you in the long run. Have you considered talking to her about how you feel, or maybe seeking support from friends or a counselor?
It's really sad to see you hurting like this. The uncertainty of her feelings and her loyalty to her boyfriend must be very confusing. It's okay to feel torn, but remember that you deserve to be in a relationship where your feelings are fully acknowledged and cherished.