Attracted to only cusp girls—

Why am I only attracted to cusp signs? This is a weird coincidence but over the years every girl I’ve dated had a birthday on the 19th. My first love was July 19 a cancer-leo cusp. 2 years later i dated a girl whose birthday was also July 19 cancer- leo cusp again. Then 6 months later I dated a girl whose birthday was June 19 (gemini-cancer cusp with a Pisces moon. Worst relationship ever.) 2 years later I met a girl who I love and reminds me of my first love. Her birthday is October 19th who is still my current gf. She’s a libra-Scorpio cusp and her moon is cancer. This is a very weird coincidence how they’re all cusp, all have some type of cancer in them, all have the same day of birthday. I don’t ask their birthday till a month later in the relationship and when they say the 19th I get freaked out

My sun is virgo , moon : aries , rising : Sagittarius