<human>: Can you summarize the given text in a few sentences?

A bit of background here for you all. The ex girlfriend broke up with me due to the distance at university, to much to cope with apparently. Anyway time has passed so I'm over all that. She dropped off the grid from the friendship group we had so in the break-up I guess I got to keep all the friends we made. 

Feeling guilty I guess she now wants to get back in touch with everyone she ditched and bring along her new boyfriend, which I have just found out tonight is a guy we all know from school and happens to have the same name as me bar one vowel in the surname, so saying it sounds identical. 

So my question is how is the best way to react to the both of them when our group of friends gets together before the holidays?
<bot>: ex gf is now dating a guy I know with the same name as me and they are coming on a night out with friends next week