need sum suggestions/advices

Technically, he's right about saying that you guys should not be doing these things before marriage. Engagement has no worth from an Islamic point of view and recently, many people have been using engagament to justify dating. In big cities back in pakistan, you see guys/girls with 2-3 broken engagements.

Bottomline, unless there is a nikah, you two are still na mehram to each other and since you mentioned that he is a religious guy, then maybe he feels this way. i am not judging you, but just explaining as to why he is behaving this way. Bye the way, if you feel so strongly about this, you may be better off with a more "enlightened" guy from UK.