Answer
No religion consider love as sin, if the acts of those involve in the name of love and over lapses the limit that leads to sin and crime.
Yes
I think the ultimate sin that we as Christians commit is Worry.
I guess it would depend on your religion. For Christians, yes, it is a sin. Christians are not to have anything to do with fortune telling, superstitions, horoscopes, ect.
Being cruel is probably a sin as it doesn't model godly or loving behavior.
No. While some Christians do think that kissing before marriage is a sin, there is no biblical basis for that. However, Christians should keep their kisses pure, and not let it turn sexual unless they are married.
No, unless one is unsaved. In that case God will judge that individual according to their sin and no sin will be forgiven
yes
Sin is a destroyer. If a person sins habitually and is a Christian God will take that person out of the lives of other Christians, sometimes by an early death. Sin will destroy the local church, which is part of the Body of Christ. Many Christ believing Churches have gone under because of sin in the membership. An occasional sin if confessed will be forgiven by God as all persons sin, even Christians, but Christians are strongly encouraged to repent of their occasional sins and confess them to God. If Christians do this the Body of Christ is healed. See I John 1:9.)
they wont, if jesus has his way with them
none should
Because she is afraid of rejection!
Ask her.