Has he lost interest...?

Abigail
I've been going out with my man for 13 months. For the past month, he's seemed so distant... He doesn't take me on dates, we had only spent time together twice last month, just during the day too. He didn't see me on the holidays, and didn't invite me to the party he went to for New Years either. He always wants to hang out with his friends now. He got off work early today and I asked to see him, but he went to hang out with a friend and now they're out practicing a sport we both play, and didn't think to invite me. So I'm just wondering if I'm overthinking, or if I have a reason to be upset.😕