be more considerate of others

For me- my problem is letting a guy get close to me and then turning him down. My last relationship was a bad one, and I now have trouble letting people into my life. The last two people that could I could have had a relationship with I turned away once things starting getting more serious, and I think I hurt them both (although I warned them that I wasn’t ready to get into anything quite yet). I feel really terrible about it, and I think I have destroyed at least a possible friendship. I really need to keep in mind others feelings before letting things get to far when I know I tend to do that.