Guys telling you something to you and another?

What do guys mean when they say that you mean a lot to them but are talking to another girl and say that that girl means a lot to them also. He is not dating the other girl but just fucking same with me as a friends with benefits and doesn’t want to lose that even if he goes and dates the other girl and the other girl is cool with that?
Guys telling you something to you and another?
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