Do you think this is a red flag ?

Linda
If you were with someone for a longtime and they don't bring their phone around you. Like they keep it hidden out of site. If they use  their phone around everyone else but you ? And they put it away as soon as you walk in the room ?
I was in a past situation where a guy I dated for a while never brought his phone around me and would even let it ring. My cousins thought he was being a gentlemen but I thought it was fishy! And it turned out that he was dating like 5 other girls