Part of the problem is that there are 20-11 different Bibles and translations, I have been using the most popular Bible in history: the King James. All of the things I have said are based on complete scriptures in I Samuel and II Samuel. Nothing has been taken out of context and coupled with some other scripture, as you imply.
I Samuel 18:1-4
1And it came to pass, when he had made an end of speaking unto Saul, that the soul of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul.
2And Saul took him that day, and would let him go no more home to his father's house.
3Then Jonathan and David made a covenant, because he loved him as his own soul.
4And Jonathan stripped himself of the robe that was upon him, and gave it to David, and his garments, even to his sword, and to his bow, and to his girdle.
And so we have here two souls knit together just as is done in a marriage, David was taken into the house of his "friend" and not allowed to go home, just as was done with a wife. Jonathon stripped off everything, robe, garments, and even his weapons. He was naked.
In I Samuel 19:1-7 Jonathon risks angering his father Saul to try to talk Saul out of killing David, and he succeeds.
In I Samuel 20:30 30Then Saul's anger was kindled against Jonathan, and he said unto him, Thou son of the perverse rebellious woman, do not I know that thou hast chosen the son of Jesse to thine own confusion, and unto the confusion of thy mother's nakedness?
This scripture suggests that Saul discovered Jonathon's attraction to David and was very angry. The reference to having chosen in confusion, unto confusion of thy mother's nakedness, again suggests an inappropriate sexual interest, does it not?
I Samuel 20:31-34 31For as long as the son of Jesse liveth upon the ground, thou shalt not be established, nor thy kingdom. Wherefore now send and fetch him unto me, for he shall surely die.
32And Jonathan answered Saul his father, and said unto him, Wherefore shall he be slain? what hath he done?
33And Saul cast a javelin at him to smite him: whereby Jonathan knew that it was determined of his father to slay David.
34So Jonathan arose from the table in fierce anger, and did eat no meat the second day of the month: for he was grieved for David, because his father had done him shame.
Saul throws a spear at his own son, why? Because he was as angry about his gay son as many Christian father's are today. And Jonathon grieved for the man whose soul is knit with his own, the man condemned to death by Jonathon's own father.
I Samuel 20:41 41And as soon as the lad was gone, David arose out of a place toward the south, and fell on his face to the ground, and bowed himself three times: and they kissed one another, and wept one with another, until David exceeded.
Please note that my quote was faithful to the very letter of the wording in the Bible and not twisted nor quoted out of context in any way.
David's own comment about their relationship is perhaps the most telling of all in II Samuel 1:25-26 25How are the mighty fallen in the midst of the battle! O Jonathan, thou wast slain in thine high places.
26I am distressed for thee, my brother Jonathan: very pleasant hast thou been unto me: thy love to me was wonderful, passing the love of women.