By no means consider yourself abnormal. It is all about what makes you feel right.

Consider this...

There are many people in this world, myself included, who have engaged in sexual acts only for reasons of needing to feel loved. So too there are those who have done so because they have felt some sense of obligation.

The fact that you have not fallen into either of these traps is a strong indicator of the fact you place value on yourself. Please continue to do so. One day you will welcome the opportunity when the right person and situation arises.