should i delete this friend on facebook?

[ms.unique]

I have this friend which we use to be quite close and then we were'nt anymore, just because we drifted apart.however, we are both part of a group of friends and we eat lunch together everyday. I use to joke about her but realised she gets offended by it, so i stopped. i sincerely apologise during prom and gave her a hug and on top of that i made an effort to invite her out for dinner occasionally and i genuinely like her as a friend. what im frustrated bout is that she LOVES to post lovey dovey friendship statuses about how awesome our group of friends are and how much she misses them and tags ALL of them except for me. This makes me feel so frustrated and i feel like this is like a personal attack towards me. shes done it a few times already, and i get affected by it emotionally. I really wanna delete her on facebook because it makes me feel bad about myself. But isit too pathetic for me to delete her just like that? Thanks