@jinlova611,
As if there is one answer to this sort of thing. What is right for one person may be wrong for another.
The male partner is disrespectfully not trusting his female partner
- the male partner also has no right to choose the female partners friends
The female partner is disrespectfully not abiding by her partners feelings
- the male partner has a right to be upset by the female partners choice of friends
- the female partner has every right to hear his feelings, and choose that friendship is more important than a partners insecurities
- the female partner should make every endeavour to disagree respectfully and, while standing up for her right to choose her friends, care for her male partners feelings
The position of people, unless they were touching each other, or appearing to, is irrelevant, especially with another family member present other than the male partner. From this perspective the male partner is being obnoxious in his attitude.
The female partner may have asked the male friend to stay and meet her male partner. The female partner should have phoned and told the male partner this. The male friend should have not chosen to stay longer than his welcome wore out. The female partner apparently had an agenda in the male friend staying longer - but that is somewhat unclear from the story.
That story can be picked apart a lot more than that. It doesn't appear that anyone is 'in the clear' in this story. I'm presuming it's eitherwise a homework assignment, or if it is a real story, then the parties involved are from a rather low socio-economic class, and eitherwise involved, or want to be involved, or are somewhat into drugs.