Comparing avoidant attachment and anxious attachment issues in relationships [21f] [21m]

Hey everyone! I have a general question about my relationship. My boyfriend (21M) tends to be avoidant, while I'm (21F) more anxious in my attachment style, though I've become more secure after two years together. I’m looking for some advice on how to help him feel safe and comfortable being more open about his emotions. I realize that my need for attention might be pushing him away, and I'm willing to change how I handle things because my current approach has made him shut down emotionally and distance himself from me. I plan to talk to him later this week about it, so any tips on how to initiate that conversation would be really helpful! 🫶 Also, I'm struggling with setting my own boundaries in the relationship, as I sometimes feel like I'm letting him take advantage of me. I find myself initiating difficult conversations while tolerating periods where he doesn't respond for days, and I end up feeling responsible for these situations.