Did they really break up?

A little while ago I found out a guy I intended becoming friends with benefits with had a girlfriend. I asked him about it and he had told me they facetimed and decided they called it quits. (They both attend college and live about 3 hours apart.) However, I can't help but not believe him as his supposed ex still has a picture of them together as her profile picture and relationship status on Facebook. I know it's something stupid, but she's been active on both social media platforms so I assume he lied to me. What do you think? Should I give him the benefit of the doubt, ask again, or just look for someone new?
I honestly liked him as a person so I'm a bit peeved to find this all out. I like to get to know people before I go messing around so I'm annoyed to have to start all over with someone new.
Did they really break up?
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