Men are different. Some are very protective, some are flat out mean. If one loves you, he shouldn't be afraid to show his love for you in public, he'll tell you everything, he'll make sure you okay, and he'll keep you happy. However don't go with this based on just that. If you're in doubt, he may not, but that won't always be true. He very well could love you, he just has trouble showing his love, a lot of males have that problem.