jumanji wrote:
I need suggestions about how to build good relationships with those of the opposite gender (both friendships and pre-dating relationships).
If all your female "friends" are just acquaintances, then I think you need to meet more people.
The best way I've found to make friends (male and female) is to go and do an activity you enjoy. For me I joined a running club and a local crafts society and met lots of people. Most are acquaintances, but some are quite good buddies. Most are female.
A mutual interest or hobby is an excellent foundation to build friendships on, regardless of gender.