Would you be able to handle a partner who is overly jealous or is it borderline insecure?

I have a friend that is so uptight around her men, and I think it’s insecurity.

1- occasion
During a skiing trip my friend and I with our husbands, my husband was about 6 feet away, so I went to say hello to her husband, standing about 2 to 4 feet away talking to him. However, my friend slid in from wherever she was and pushed me further away from her husband.
I felt it was too much, and my husband and I exchanged glances. Anyway, I could see myself doing something similar. Passed.

2nd- occasion,
she is pregnant, and I bought gifts for the new baby, shipping them directly to her home. She wasn't there when her husband received the gifts and called me to say thank you. We caught up on things he's interested in, and I asked about her. When she arrived, he passed her his phone to thank me. I shared everything her husband and I talked about, assuming she might be insecure about interactions with the opposite gender. Despite expecting to continue our chat after she took the phone, she abruptly ended the conversation without an excuse or callback.

I was surprised, thinking, "That's his phone; why couldn't she return it, and we could continue talking?" While I admit to being jealous, territorial, and possessive, I've never crossed the line like that. The opposite sex doesn't cease to exist, and he's not a child; I trust him and his judgment. This situation has brought a new type of awareness to me.
Would that be too much for you?
Updates
3 mo

I meant to say;
I was surprised, thinking, "That's While I admit to being jealous, territorial, and possessive, I've never crossed the line like that. The opposite sex doesn't cease to exist, and he's not a child; I would** trust him and his judgment. This situation has brought a new type of awareness to me.
Would you be able to handle a partner who is overly jealous or is it borderline insecure?
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