I beleive what 'djwhitewolf' has said is spot on!

Perhaps you need to alter how you think about sharing yourself with your loved one? You need to feel ok at being touched and safe that it does not have to lead on to anything more than you can handle - also by practising to simply touch each other and feel the sensation of that will ensure that you do still have a physical connetion with him.

For e.g I love to have my back gently stroked and tickled - so my ex-partner would do this without it having to mean more - just enjoy having someone who you know cares for you deeply to touch you in this way. Ask him what he may like - my ex loved the underneath of his feet being stroked (wierd eh ;-) so I would do this for him.

Touching and feeling okay about it is something you may have to re-learn to feel okay about - you can do it!

All the best
Spiritofnow