<human>: Could you distill the essence of the text into 1-3 sentences?

we were only dating about 3 months. She broke up with me without really giving me any solid reasons why other than to say i didn't make enough of an effort when she needed it. We had never made it "official" but were definitely getting there. 

I want her back and told her during the break up that I wanted to try again. She "didn't think it was fixable". I never got any definites. But at the end of the break up i told her that I liked having her in my life and that it would be a shame to lose touch. She said she felt the same way. 

Ever since the break up she's been texting me about once or twice a week. Nothing too serious or emotional. Just simple screen grabs or a link to something. I respond with a quip. and so on. The texts are never more than 8 exchanges deep. She has Also continued to like my instagram photos and facebook posts. 

The thing is, i'm finding it very hard to move on. I know about the No contact rule and think it's time to set that in place. I dont want to FLAT OUT ignore her the next time since we agreed to contact. So I'd like to craft a simple powerful message to her as a response IF she writes again. Something that let's her know i dont think this is healthy for me because I have feelings for her still.
<bot>: What is an amicable way to tell my ex that I'd like to stop texting with her even though we talked about staying in touch?