True love comes from the heart and includes risks. If you're not willing to take the risks involved you're not willing to love unconditionally. Casting a "Love Spell" would not and could not ever create True Love, it would be more akin to indentured servitude. If you're asking for and paying for "love spells" then you've not truly in love, you're just afraid to be alone.
I know this may sound harsh and though I wish it weren't, Truth can be harsh and brutal. You need to sit down with your significant other and talk, get the truth out in the open, and go from there. Imagine how your partner would feel if they found out you were trying to force their love, it wouldn't turn out well.
I wish you all the peace and happiness you truly deserve, Good Luck!