6: don't date girls that like you and incompatible with you. Incompatible for a reason.
I'm just gonna answer based off of my relationship.
1 - Nope. There's no problem with warm or close friendships with others.
2 - I don't see why not. It's best to avoid the need to cry but if you do need to cry, then I don't see why you should hold it back.
3 - No, that's just gonna be unattractive and make you seem like an unpleasant person.
4 - It's best to not annoy someone but you probably shouldn't be going weeks without talking.
5 - Giving anyone 100% effort could backfire. But that's the risk you take getting into a relationship.
2 & 5 is literally the best advice to a guy on dating that they could ever get. It's that thing that all the 'players' have in common and that is why they are successful.
You cannot undo this action. The opinion owner is going to be notified and earn 7 XPER points.