When your best friend is very sweet with your lover

There are several cases I know when a best friend gets sweet to the boyfriend such that the woman suspects something. My advice is to be discerning because sometimes when fits of jealousy hits us, we lose our sense of judgment. In other words, we see things differently when we feel jealous. But when their behavior is obviously sweet to each other, that is a different case. There is a saying that a flirting woman should not be blamed but the man for his opportunistic attitude. If the best friend flirts and the guy bites then it takes two to tango - they are both at fault but the man is more to be blamed.

If you are really my best friend, you would know the limits, and boundaries when it comes to being too close with my partner. If you truly respect me as your best friend, you would never try to take the love of my partner away from me. Same goes with my partner.

I think a good friend can also behave good.
There are always tight knit friend groups where you spend a lot of times together and have fun, but you know acting like a couple and acting like friends is two different things and should be handled differently.