Most of the information on this topic has been summarized nicely in a recent book chapter.
You have not said if you or your boyfriend are Christians.
Hebrews 13:4 says, “Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous.” God’s gift of sexual union is very good and very powerful.
Reserving the power of sex for marriage, and restraining it within marriage, is necessary for its goodness.
It is only within the marital relationship between husband and wife that the standards change as outlined in passages like 1 Corinthians 7:3-5, Ephesians -33, Song of Solomon, Matthew 19:4-6.
Once married, the relationship between husband and wife is protected by the highest boundaries.
yes or no"), b) seeing if the “friend” gets jealous or upset at the sight of you flirting with another person or the thought of you in a relationship with someone else, c) joking or playfully suggesting that there might be a romantic spark between you, or d) spending time apart to see if the “friend” expresses loneliness or misses you.