Fiance and Work

My fiancé was talking to a female coworker, much younger than I and who’s voice annoys me. Anyway, she noticed something he was carrying for his nephew and asked about it. Since I was on the phone with him I heard the exchange. My problem is this: he didn’t give me the credit. I had bought this cute item. He said, “oh yeah my nephew likes this…” After she walked away, I asked why he didn’t say that his fiancé bought it. He said, “I don’t know, I got a lot on my mind I’m just packing up to leave..”

My thing is this why is it a hassle to mention your fiancé? So I asked him do they know you’re engaged. He said they all do. I’m just wondering. If I was asked about something I’d say my fiancé got it. I’m very quick with that. Why is this something he has to be ready for?

Am I overthinking this? Then one of his cousins mentioned having a hobby. I told him I can help because I’m a professional in that particular hobby. He says “oh,” AGAIN I asked “did you tell him I could help? That this profession is my field?” He said he didn’t think of it.
But the other day I looked in his phone and found that he had mentioned to his sister how my license was being suspended if I didn’t pay a parking ticket. A COMPLETE LIE. Initially I had chalked it up to him now knowing the states rule (we live in different states) But now with all this going on I’m starting to wonder what’s going on….

I’m starting to feel, or fear, that he doesn’t reference me or mention me when he should. I’m his fiancé, not his gf. It should be automatic. And when I’m with his family he doesn’t bring things up that I do. IN fact I’ve noticed I sit there and his sister doesn’t speak to me. But her husband chats me up.

He’s going through alot right now and so I’m trying to not bring anything up. But I’m such an open person that these kinds of things don’t happen where hes concerned. I’ve never dealt w/ this before with any man…