Should I remove myself from her life?

So my ex-girlfriend is a really great person and I made a big mistake during our short time as a couple. In the end, she told me in time we can be better friends but nothing more. (We are both still in multiple group chats with our friend group) I respect her decision because it was my fault and I understand that but I have been thinking about her lately and started to think it might be best if I remove myself from her life. I still love her and every time I see a text or post on social media, or I see her in person at a party. I remember all the moments we shared and the part of me that loves her wants more, but I understand that is not possible anymore. I do not know what she thinks when she sees a post or a text from me or how she feels when she sees me in public but I do know it's not the same as before. This is why I think we can never actually be friends because I will want more and I cant put either of us through any pain anymore. Should I confront her one last time and thank her for our time together and tell her it's best for us to not be involved in each other's life?