different religion

If this Catholic person adheres to the teachings of the Catholic Church, and depends upon the institutions of the Catholic Church for salvation (i.e. baptism for salvation, partaking of the eucharist, confession to a priest for prescribed pennance), and has not had a genuine born again experience with Jesus Christ where God regenerated their heart, and sealed them with the Holy Spirit... then that person is not a Christian.

If you have come to Biblical salvation then you are a Christian.

In such a case then yes, you would most definately be out of the will and commands of God... which is sin.

Scripture says:

[b]2 Corinthians 6:14[/b] [i]Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?[/i]

You need to break off this relationship. Do not keep the relationship going hoping that you will lead this person to Christ. That has a failure rate of about 110%.

You need to obey Christ's commands and break it off. If you choose to disobey His commands then you need to take a look and see if perhaps you may not be in the faith yourself.

Jesus comes first.

Krispy