Here are a few verses that came to mind while praying for this situation.
Jhn 13:34
A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.
Jhn 15:12
This is my commandment, That ye love one another, as I have loved you.
Jhn 15:17
These things I command you, that ye love one another.
Rom 13:8
Owe no man any thing, but to love one another: for he that loveth another hath fulfilled the law.
1Th 4:9
But as touching brotherly love ye need not that I write unto you: for ye yourselves are taught of God to love one another.
1Pe 1:22
Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently:
1Jo 3:11
For this is the message that ye heard from the beginning, that we should love one another.
1Jo 3:23
And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
1Jo 4:7
Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God.
1Jo 4:11
Beloved, if God so loved us, we ought also to love one another.
1Jo 4:12
No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.
2Jo 1:5
And now I beseech thee, lady, not as though I wrote a new commandment unto thee, but that which we had from the beginning, that we love one another.
Jhn 13:35
By this shall all men know that ye are my disciples, if ye have love one to another.
Rom 12:10
Be kindly affectioned one to another with brotherly love; in honour preferring one another;
Gal 5:13
For, brethren, ye have been called unto liberty; only use not liberty for an occasion to the flesh, but by love serve one another.
Eph 4:2
With all lowliness and meekness, with longsuffering, forbearing one another in love;
1Th 3:12 And the Lord make you to increase and abound in love one toward another, and toward all men, even as we do toward you
Hbr 10:24
And let us consider one another to provoke unto love and to good works:
1Pe 3:8 Finally, be ye all of one mind, having compassion one of another, love as brethren, be pitiful, be courteous
Although I do not believe the same as those telling you not to be unequally yoked, I do strongly urge you to have Bible studies with your boyfriend so you may both grow in grace with Christ.
Many times people will take 1 verse and use it as a weapon against others who do not have as much knowledge in Gods word than what they are.
Good luck to you, your boyfriend and your walk with Christ.