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

So here's the scoop: my girlfriend and I have been dating for the better part of 4 months and recently asked one of her friends to hang out because they haven't in a while.

My girlfriend usually tells me if she knows a guy has admitted to liking her before. This guy-friend of hers admitted to liking her for many years and admitted strong feelings just a short time before her and I began dating. Just today she hit him up and said that they need to hangout again soon because they haven't in about 2 months. She is apparently clearing her schedule next Friday to hang out with him.

She has also told me that he is annoying and she never liked him like that.

My problem is that I feel that she should distance herself from people who have feelings from her. And if she finds this guy annoying, why ask to hang out? Maybe I'm wrong in thinking this way. 

I've also seen this guy text her "<3".

Should I be concerned?
<bot>: My girlfriend wants to hangout with a guy that likes her because she feels that haven't chilled in a while. She claimed to have told me that she finds him annoying.