The reference Jesus made to eating his flesh and drinking his blood is a metaphorical way of describing the person who draws on, claims, or lays hold of the reality of his atoning sacrifice by putting personal faith in him. And when we realize that he's confronting us, then we have to respond to him.
Jesus is a person who confronts us through his Word.
Come to him and believe in him as Nicodemus was taught to do (John 3), as were the woman at the well and the other folk from Sychar in the next chapter.
He cares about the things that concern us, and He’s longing to connect with us in a way that’s meaningful.
No matter where we are or who we are with, above all else we are called to reflect God’s love, encouraging and uplifting those around us (1 Thessalonians ).
It’s important to remember that though dating should never be used for the purpose of bringing others to know Jesus, it’s still a chance to encourage and uplift those we come into contact with.
Healthy interactions with others will leave us with little regrets, no matter what the long term outcomes.
All over Scripture we are reminded of the meaning of a physical relationship within the context of a committed marriage (Hebrews 13:4, Song of Solomon 8:4).