I would say yes if you've had any previous partners before him and haven't gotten tested since them.
If you haven't, then no. You should be fine since there's no risk in getting anything.
She was never monogamous, she always had multiple partners at the same time.
If you have had no new partners, and your partner is monogamous, you don't need retesting. You should be retested if you have a new partner.
No, AIDS can't occur if partners are hiv negative.
Negative numbers means
Monogamous gay men only have 1. Otherwise, the number varies by person.
Having multiple sex partners.
Multiple marital partners
You said '2 of your partners'. Did you have partners after them? It means that they don't have AIDS but it doesn't necessarily mean that you are negative, this means that if you had it you didn't get it from them only. It is advisable that nowadays people should have the test done regularly.
Multiple sex partners.
You can but not really
A monogamous heterosexual relationship may be healthy, but the genders or number of sexual partners is not the relevant aspect. A healthy relationship is one based upon mutual respect, trust and communication, features that can be absent from monogamous heterosexual relationships. Also, homosexual relationships can be based upon mutual respect, trust and communication, as can polygamous relationships.
Being promiscuous (having a lot of sexual partners) does not create HIV - you have to be infected by one of your partners (or by some other means on transmission). The fact that you are promiscuous (have a lot of sexual partners) does not significantly increase your risk of contracting HIV. The risk would arise if you were not having safer sex with them.