That has yet to be proven. IMO, if Katie actually thinks she loves him, she should re-evaluate the situation and dump him before he dumps her, and she ends up raising kids alone. For whatever reason, (possibly gay) he dumps women.
Katie in love?
At their staged engagment photo op (called 2 hours after Tom supposedly proposed at the Eiffel tower)...Katie's only comments (made while her newly assigned 24/7 scientology minder hovered over her) was about the beauty of Paris.
There was a lot more evidence of "sincere love" in the Charles and Diana engagement photo op.