The curse of my relationships

People ask me why I'm not in a relationship, how can I stand the loneliness. It is hard to explain, it's not something I choose to do, or maybe it is. I love my life the way it is, my job, my friends, my family, everything stable all the time.
On the other hand I like feeling loved, cared for, getting a hug, a kiss, making love, getting flowers, a letter, romance. Problem is I'm cursed, It seems that I can't have that, I fall in love and I get heart broken everytime, I give my soul and get nothing back. May be it's just not for me, not too long ago I decided to let go, just try it again, give love a chance... everything seems fine, nice guy, great moments together, two weeks later, life's a mess again, no time no see. It's just bad luck, bad timing, should not get attached to anyone, people are unpredictable, one they with you, then away.