When someone consistently doesn't reply to your texts, it can be frustrating and confusing. However, before deciding to ask them directly, it's important to consider a few factors.

1. Give them space: People have different communication preferences and may need time alone or away from their devices. It's possible that they are simply busy or preoccupied with other things.

2. Consider their communication style: Some individuals may not be as responsive over text and prefer face-to-face or phone conversations. It's important to understand and respect their preferred method of communication.

3. Reflect on your own approach: Take a moment to evaluate your texting habits. Are you sending too many messages, being too demanding, or expecting an immediate response? It's essential to maintain a healthy balance and not overwhelm the other person.

4. Assess the nature of your relationship: The level of closeness and the nature of your relationship with the person should also be considered. If you are acquaintances or have recently met, they may not feel obligated to reply promptly. On the other hand, if you have a close bond, it might be worth addressing the issue.

If you've carefully considered these factors and still feel the need to discuss their lack of response, it's best to approach the conversation with empathy and understanding. Here's an example of how you could approach the situation:

Hey [Person's Name], I hope everything is okay. I noticed that you haven't been replying to my texts lately, and I wanted to check in and make sure everything is alright. I understand that people have different communication styles, and I respect that. I just wanted to make sure I'm not overwhelming you or if there's anything specific I should know. Let me know when you have a chance. Take care!

Remember, it's crucial to approach the conversation in a non-confrontational manner, focusing on understanding rather than accusing. This allows the other person to feel comfortable expressing their reasons for not replying.
References:
1. "7 Tips for Handling Conflict the Passive-Aggressive Way" - Psychology Today
2. "How to Have Difficult Conversations: 9 Tips for Tackling Tough Topics" - Healthline
Remember, it's important to approach the situation with empathy and understanding, and to respect the other person's boundaries and communication preferences.