(And if the picture is the main thing you’re basing decisions on, remember that physical attraction isn’t as important as you think.) Also, no one puts their strange idiosyncrasies or sin struggles in their profile; they present their most positive resume. Because we all want to be loved, liked, swiped, chosen, asked out, etc.
You’re not swiping a real person; you are swiping a veneer.
We are marrying later, marrying less, and those marriages are failing more often.
He is the ultimate joy-giver, and his principles point us in the direction of complete joy and how to participate in a sexual relationship with someone that is exciting and fulfilling.
One of the clearest principles on this issue of physical relationships is Ephesians 5:3 -"But among you there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed, because these are improper for God’s holy people." Sexual immorality is not just sexual intercourse outside of marriage.
What this looks like in your situation specifically, might be different to someone elses.
There are obviously some behaviours which all people agree are ‘off-limits’ - I won’t even mention these!