Cheating??

I think my husband is cheating on me. Before I would be able to use his phone, or get it whenever I wanted. But now, whenever I ask if I can use his phone he asks why if I have my own. He has games, I don’t, or sometimes my phone is dead so I usually (would use his).

On his previous phone he had us on both screens lock and inside screen. But now on his new phone he doesn’t for none. He put the excused that he was getting is old number so he didn’t wanted to change much. But I told him he was changing his number and not phone and all he said was “ohh yeah”. He also has me under “BaBy” (exactly like that) which I found really odd. & he texts with unsaved numbers for some reason now.

Also last thing he usually texts me random messages, which makes me doubt even more. For example we be talking about if he ate already and he be like “thank you my love” Or “yes baby” when nothing is being asked. He responds back with things that don’t make sense to our conversation.

Ps. There’s times when he will show me who texted him and other times where he won’t even see the message in front of me.

Idk, am I reaching/overthinking?