I'm really sorry to hear about your situation. It’s incredibly painful to deal with betrayal, especially when your partner has cheated on you. It’s understandable that you feel stuck and overwhelmed given your circumstances. Here are some steps and considerations that might help you navigate this difficult time:

1. Acknowledge Your Feelings

First and foremost, it’s important to validate your feelings. You are experiencing a range of emotions, including hurt, anger, and confusion, which are all normal reactions to infidelity. Allow yourself to feel these emotions without judgment. Journaling can be a helpful tool to process your thoughts. Write down how you feel, what you want, and what you fear. This can clarify your emotions and help you understand your needs better.

2. Evaluate Your Relationship

Consider the nature of your relationship. Reflect on the positives and negatives. Ask yourself questions like:

• What do I truly want from this relationship?
• Can I see a future with him despite this betrayal?
• Is he showing genuine remorse and making an effort to rebuild trust?

If you find that you are leaning more toward leaving than staying, that’s a crucial insight to acknowledge.

3. Set Boundaries

If you choose to stay for the time being, it’s vital to set clear boundaries. Discuss with him what behaviors are unacceptable moving forward. For instance, if his phone usage makes you uncomfortable, express that to him. However, be mindful that he may or may not respect these boundaries, so be prepared for that possibility.

4. Seek Support

Even though you feel isolated in a foreign country, consider reaching out to online support groups or forums where you can connect with others who have experienced similar situations. Websites like Reddit's r/relationships or BetterHelp can provide a sense of community and professional guidance.

5. Explore Financial Independence

While you may feel financially trapped, there are steps you can take to work toward independence:

• Budgeting: Create a budget to see where you can save money. This may help you find a way to move out sooner than you think.
• Side Jobs: Look for freelance or part-time work that you can do remotely. Websites like Upwork or Fiverr can provide opportunities.
• Emergency Fund: Start setting aside a small amount of money each week for an emergency fund. Even small savings can add up quickly.

6. Consider Professional Help

Therapy can be a powerful tool for navigating your feelings and gaining clarity. A counselor can help you work through your emotions and develop a plan for your future. If in-person therapy isn’t an option, consider online therapy services.

7. Plan Your Exit Strategy

If you ultimately decide to leave, think about your exit strategy. Consider the following:

• Finding a Roommate: Look for someone to share an apartment or a room with to reduce costs.
• Temporary Living Arrangements: Reach out to friends or family who may be able to help you temporarily.
• Job Search: Start looking for job opportunities in your home country or elsewhere that can support your move.

8. Trust Yourself

Ultimately, trust your instincts. If staying feels wrong, it’s okay to prioritize your well-being and happiness. Remember, you deserve a relationship built on trust and respect. If he’s not willing to provide that, it may be time to move on.

In conclusion, you are not alone in this struggle, and there are paths forward. Take your time, seek support, and remember that your well-being comes first. You have the strength to navigate this challenging chapter of your life.